28271880

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{863}}^1$

素因数の和:900

約数の個数: 192

約数和(自身を含む): 113218560

約数和(自身を除く): 84946680

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, 863, 910, 936, 1092, 1170, 1260, 1365, 1560, 1638, 1726, 1820, 2184, 2340, 2520, 2589, 2730, 3276, 3452, 3640, 4095, 4315, 4680, 5178, 5460, 6041, 6552, 6904, 7767, 8190, 8630, 10356, 10920, 11219, 12082, 12945, 15534, 16380, 17260, 18123, 20712, 22438, 24164, 25890, 30205, 31068, 32760, 33657, 34520, 36246, 38835, 44876, 48328, 51780, 54369, 56095, 60410, 62136, 67314, 72492, 77670, 78533, 89752, 90615, 100971, 103560, 108738, 112190, 120820, 134628, 144984, 155340, 157066, 168285, 181230, 201942, 217476, 224380, 235599, 241640, 269256, 271845, 310680, 314132, 336570, 362460, 392665, 403884, 434952, 448760, 471198, 504855, 543690, 628264, 673140, 706797, 724920, 785330, 807768, 942396, 1009710, 1087380, 1177995, 1346280, 1413594, 1570660, 1884792, 2019420, 2174760, 2355990, 2827188, 3141320, 3533985, 4038840, 4711980, 5654376, 7067970, 9423960, 14135940, 28271880]

約数ペア:

[(1, 28271880), (2, 14135940), (3, 9423960), (4, 7067970), (5, 5654376), (6, 4711980), (7, 4038840), (8, 3533985), (9, 3141320), (10, 2827188), (12, 2355990), (13, 2174760), (14, 2019420), (15, 1884792), (18, 1570660), (20, 1413594), (21, 1346280), (24, 1177995), (26, 1087380), (28, 1009710), (30, 942396), (35, 807768), (36, 785330), (39, 724920), (40, 706797), (42, 673140), (45, 628264), (52, 543690), (56, 504855), (60, 471198), (63, 448760), (65, 434952), (70, 403884), (72, 392665), (78, 362460), (84, 336570), (90, 314132), (91, 310680), (104, 271845), (105, 269256), (117, 241640), (120, 235599), (126, 224380), (130, 217476), (140, 201942), (156, 181230), (168, 168285), (180, 157066), (182, 155340), (195, 144984), (210, 134628), (234, 120820), (252, 112190), (260, 108738), (273, 103560), (280, 100971), (312, 90615), (315, 89752), (360, 78533), (364, 77670), (390, 72492), (420, 67314), (455, 62136), (468, 60410), (504, 56095), (520, 54369), (546, 51780), (585, 48328), (630, 44876), (728, 38835), (780, 36246), (819, 34520), (840, 33657), (863, 32760), (910, 31068), (936, 30205), (1092, 25890), (1170, 24164), (1260, 22438), (1365, 20712), (1560, 18123), (1638, 17260), (1726, 16380), (1820, 15534), (2184, 12945), (2340, 12082), (2520, 11219), (2589, 10920), (2730, 10356), (3276, 8630), (3452, 8190), (3640, 7767), (4095, 6904), (4315, 6552), (4680, 6041), (5178, 5460)]