31220280

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{953}}^1$

素因数の和:990

約数の個数: 192

約数和(自身を含む): 125012160

約数和(自身を除く): 93791880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 20, 21, 24, 26, 28, 30, 35, 36, 39, 40, 42, 45, 52, 56, 60, 63, 65, 70, 72, 78, 84, 90, 91, 104, 105, 117, 120, 126, 130, 140, 156, 168, 180, 182, 195, 210, 234, 252, 260, 273, 280, 312, 315, 360, 364, 390, 420, 455, 468, 504, 520, 546, 585, 630, 728, 780, 819, 840, 910, 936, 953, 1092, 1170, 1260, 1365, 1560, 1638, 1820, 1906, 2184, 2340, 2520, 2730, 2859, 3276, 3640, 3812, 4095, 4680, 4765, 5460, 5718, 6552, 6671, 7624, 8190, 8577, 9530, 10920, 11436, 12389, 13342, 14295, 16380, 17154, 19060, 20013, 22872, 24778, 26684, 28590, 32760, 33355, 34308, 37167, 38120, 40026, 42885, 49556, 53368, 57180, 60039, 61945, 66710, 68616, 74334, 80052, 85770, 86723, 99112, 100065, 111501, 114360, 120078, 123890, 133420, 148668, 160104, 171540, 173446, 185835, 200130, 223002, 240156, 247780, 260169, 266840, 297336, 300195, 343080, 346892, 371670, 400260, 433615, 446004, 480312, 495560, 520338, 557505, 600390, 693784, 743340, 780507, 800520, 867230, 892008, 1040676, 1115010, 1200780, 1300845, 1486680, 1561014, 1734460, 2081352, 2230020, 2401560, 2601690, 3122028, 3468920, 3902535, 4460040, 5203380, 6244056, 7805070, 10406760, 15610140, 31220280]

約数ペア:

[(1, 31220280), (2, 15610140), (3, 10406760), (4, 7805070), (5, 6244056), (6, 5203380), (7, 4460040), (8, 3902535), (9, 3468920), (10, 3122028), (12, 2601690), (13, 2401560), (14, 2230020), (15, 2081352), (18, 1734460), (20, 1561014), (21, 1486680), (24, 1300845), (26, 1200780), (28, 1115010), (30, 1040676), (35, 892008), (36, 867230), (39, 800520), (40, 780507), (42, 743340), (45, 693784), (52, 600390), (56, 557505), (60, 520338), (63, 495560), (65, 480312), (70, 446004), (72, 433615), (78, 400260), (84, 371670), (90, 346892), (91, 343080), (104, 300195), (105, 297336), (117, 266840), (120, 260169), (126, 247780), (130, 240156), (140, 223002), (156, 200130), (168, 185835), (180, 173446), (182, 171540), (195, 160104), (210, 148668), (234, 133420), (252, 123890), (260, 120078), (273, 114360), (280, 111501), (312, 100065), (315, 99112), (360, 86723), (364, 85770), (390, 80052), (420, 74334), (455, 68616), (468, 66710), (504, 61945), (520, 60039), (546, 57180), (585, 53368), (630, 49556), (728, 42885), (780, 40026), (819, 38120), (840, 37167), (910, 34308), (936, 33355), (953, 32760), (1092, 28590), (1170, 26684), (1260, 24778), (1365, 22872), (1560, 20013), (1638, 19060), (1820, 17154), (1906, 16380), (2184, 14295), (2340, 13342), (2520, 12389), (2730, 11436), (2859, 10920), (3276, 9530), (3640, 8577), (3812, 8190), (4095, 7624), (4680, 6671), (4765, 6552), (5460, 5718)]