64878750

素因数分解:

$2^1\times 3^2\times 5^4\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:180

約数の個数: 120

約数和(自身を含む): 180317280

約数和(自身を除く): 115438530

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 73, 75, 79, 90, 125, 146, 150, 158, 219, 225, 237, 250, 365, 375, 395, 438, 450, 474, 625, 657, 711, 730, 750, 790, 1095, 1125, 1185, 1250, 1314, 1422, 1825, 1875, 1975, 2190, 2250, 2370, 3285, 3555, 3650, 3750, 3950, 5475, 5625, 5767, 5925, 6570, 7110, 9125, 9875, 10950, 11250, 11534, 11850, 16425, 17301, 17775, 18250, 19750, 27375, 28835, 29625, 32850, 34602, 35550, 45625, 49375, 51903, 54750, 57670, 59250, 82125, 86505, 88875, 91250, 98750, 103806, 136875, 144175, 148125, 164250, 173010, 177750, 259515, 273750, 288350, 296250, 410625, 432525, 444375, 519030, 720875, 821250, 865050, 888750, 1297575, 1441750, 2162625, 2595150, 3604375, 4325250, 6487875, 7208750, 10813125, 12975750, 21626250, 32439375, 64878750]

約数ペア:

[(1, 64878750), (2, 32439375), (3, 21626250), (5, 12975750), (6, 10813125), (9, 7208750), (10, 6487875), (15, 4325250), (18, 3604375), (25, 2595150), (30, 2162625), (45, 1441750), (50, 1297575), (73, 888750), (75, 865050), (79, 821250), (90, 720875), (125, 519030), (146, 444375), (150, 432525), (158, 410625), (219, 296250), (225, 288350), (237, 273750), (250, 259515), (365, 177750), (375, 173010), (395, 164250), (438, 148125), (450, 144175), (474, 136875), (625, 103806), (657, 98750), (711, 91250), (730, 88875), (750, 86505), (790, 82125), (1095, 59250), (1125, 57670), (1185, 54750), (1250, 51903), (1314, 49375), (1422, 45625), (1825, 35550), (1875, 34602), (1975, 32850), (2190, 29625), (2250, 28835), (2370, 27375), (3285, 19750), (3555, 18250), (3650, 17775), (3750, 17301), (3950, 16425), (5475, 11850), (5625, 11534), (5767, 11250), (5925, 10950), (6570, 9875), (7110, 9125)]