661867920

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{3203}}^1$

素因数の和:3270

約数の個数: 240

約数和(自身を含む): 2603083392

約数和(自身を除く): 1941215472

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 41, 42, 45, 48, 56, 60, 63, 70, 72, 80, 82, 84, 90, 105, 112, 120, 123, 126, 140, 144, 164, 168, 180, 205, 210, 240, 246, 252, 280, 287, 315, 328, 336, 360, 369, 410, 420, 492, 504, 560, 574, 615, 630, 656, 720, 738, 820, 840, 861, 984, 1008, 1148, 1230, 1260, 1435, 1476, 1640, 1680, 1722, 1845, 1968, 2296, 2460, 2520, 2583, 2870, 2952, 3203, 3280, 3444, 3690, 4305, 4592, 4920, 5040, 5166, 5740, 5904, 6406, 6888, 7380, 8610, 9609, 9840, 10332, 11480, 12812, 12915, 13776, 14760, 16015, 17220, 19218, 20664, 22421, 22960, 25624, 25830, 28827, 29520, 32030, 34440, 38436, 41328, 44842, 48045, 51248, 51660, 57654, 64060, 67263, 68880, 76872, 89684, 96090, 103320, 112105, 115308, 128120, 131323, 134526, 144135, 153744, 179368, 192180, 201789, 206640, 224210, 230616, 256240, 262646, 269052, 288270, 336315, 358736, 384360, 393969, 403578, 448420, 461232, 525292, 538104, 576540, 656615, 672630, 768720, 787938, 807156, 896840, 919261, 1008945, 1050584, 1076208, 1153080, 1181907, 1313230, 1345260, 1575876, 1614312, 1793680, 1838522, 1969845, 2017890, 2101168, 2306160, 2363814, 2626460, 2690520, 2757783, 3151752, 3228624, 3677044, 3939690, 4035780, 4596305, 4727628, 5252920, 5381040, 5515566, 5909535, 6303504, 7354088, 7879380, 8071560, 8273349, 9192610, 9455256, 10505840, 11031132, 11819070, 13788915, 14708176, 15758760, 16143120, 16546698, 18385220, 18910512, 22062264, 23638140, 27577830, 31517520, 33093396, 36770440, 41366745, 44124528, 47276280, 55155660, 66186792, 73540880, 82733490, 94552560, 110311320, 132373584, 165466980, 220622640, 330933960, 661867920]

約数ペア:

[(1, 661867920), (2, 330933960), (3, 220622640), (4, 165466980), (5, 132373584), (6, 110311320), (7, 94552560), (8, 82733490), (9, 73540880), (10, 66186792), (12, 55155660), (14, 47276280), (15, 44124528), (16, 41366745), (18, 36770440), (20, 33093396), (21, 31517520), (24, 27577830), (28, 23638140), (30, 22062264), (35, 18910512), (36, 18385220), (40, 16546698), (41, 16143120), (42, 15758760), (45, 14708176), (48, 13788915), (56, 11819070), (60, 11031132), (63, 10505840), (70, 9455256), (72, 9192610), (80, 8273349), (82, 8071560), (84, 7879380), (90, 7354088), (105, 6303504), (112, 5909535), (120, 5515566), (123, 5381040), (126, 5252920), (140, 4727628), (144, 4596305), (164, 4035780), (168, 3939690), (180, 3677044), (205, 3228624), (210, 3151752), (240, 2757783), (246, 2690520), (252, 2626460), (280, 2363814), (287, 2306160), (315, 2101168), (328, 2017890), (336, 1969845), (360, 1838522), (369, 1793680), (410, 1614312), (420, 1575876), (492, 1345260), (504, 1313230), (560, 1181907), (574, 1153080), (615, 1076208), (630, 1050584), (656, 1008945), (720, 919261), (738, 896840), (820, 807156), (840, 787938), (861, 768720), (984, 672630), (1008, 656615), (1148, 576540), (1230, 538104), (1260, 525292), (1435, 461232), (1476, 448420), (1640, 403578), (1680, 393969), (1722, 384360), (1845, 358736), (1968, 336315), (2296, 288270), (2460, 269052), (2520, 262646), (2583, 256240), (2870, 230616), (2952, 224210), (3203, 206640), (3280, 201789), (3444, 192180), (3690, 179368), (4305, 153744), (4592, 144135), (4920, 134526), (5040, 131323), (5166, 128120), (5740, 115308), (5904, 112105), (6406, 103320), (6888, 96090), (7380, 89684), (8610, 76872), (9609, 68880), (9840, 67263), (10332, 64060), (11480, 57654), (12812, 51660), (12915, 51248), (13776, 48045), (14760, 44842), (16015, 41328), (17220, 38436), (19218, 34440), (20664, 32030), (22421, 29520), (22960, 28827), (25624, 25830)]