81185910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{239}}^1$

素因数の和:342

約数の個数: 96

約数和(自身を含む): 215032320

約数和(自身を除く): 133846410

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 67, 78, 130, 134, 169, 195, 201, 239, 335, 338, 390, 402, 478, 507, 670, 717, 845, 871, 1005, 1014, 1195, 1434, 1690, 1742, 2010, 2390, 2535, 2613, 3107, 3585, 4355, 5070, 5226, 6214, 7170, 8710, 9321, 11323, 13065, 15535, 16013, 18642, 22646, 26130, 31070, 32026, 33969, 40391, 46605, 48039, 56615, 67938, 80065, 80782, 93210, 96078, 113230, 121173, 160130, 169845, 201955, 208169, 240195, 242346, 339690, 403910, 416338, 480390, 605865, 624507, 1040845, 1211730, 1249014, 2081690, 2706197, 3122535, 5412394, 6245070, 8118591, 13530985, 16237182, 27061970, 40592955, 81185910]

約数ペア:

[(1, 81185910), (2, 40592955), (3, 27061970), (5, 16237182), (6, 13530985), (10, 8118591), (13, 6245070), (15, 5412394), (26, 3122535), (30, 2706197), (39, 2081690), (65, 1249014), (67, 1211730), (78, 1040845), (130, 624507), (134, 605865), (169, 480390), (195, 416338), (201, 403910), (239, 339690), (335, 242346), (338, 240195), (390, 208169), (402, 201955), (478, 169845), (507, 160130), (670, 121173), (717, 113230), (845, 96078), (871, 93210), (1005, 80782), (1014, 80065), (1195, 67938), (1434, 56615), (1690, 48039), (1742, 46605), (2010, 40391), (2390, 33969), (2535, 32026), (2613, 31070), (3107, 26130), (3585, 22646), (4355, 18642), (5070, 16013), (5226, 15535), (6214, 13065), (7170, 11323), (8710, 9321)]