131317750

素因数分解:

$2^1\times 5^3\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:266

約数の個数: 64

約数和(自身を含む): 255340800

約数和(自身を除く): 124023050

約数列:

[1, 2, 5, 10, 25, 50, 61, 79, 109, 122, 125, 158, 218, 250, 305, 395, 545, 610, 790, 1090, 1525, 1975, 2725, 3050, 3950, 4819, 5450, 6649, 7625, 8611, 9638, 9875, 13298, 13625, 15250, 17222, 19750, 24095, 27250, 33245, 43055, 48190, 66490, 86110, 120475, 166225, 215275, 240950, 332450, 430550, 525271, 602375, 831125, 1050542, 1076375, 1204750, 1662250, 2152750, 2626355, 5252710, 13131775, 26263550, 65658875, 131317750]

約数ペア:

[(1, 131317750), (2, 65658875), (5, 26263550), (10, 13131775), (25, 5252710), (50, 2626355), (61, 2152750), (79, 1662250), (109, 1204750), (122, 1076375), (125, 1050542), (158, 831125), (218, 602375), (250, 525271), (305, 430550), (395, 332450), (545, 240950), (610, 215275), (790, 166225), (1090, 120475), (1525, 86110), (1975, 66490), (2725, 48190), (3050, 43055), (3950, 33245), (4819, 27250), (5450, 24095), (6649, 19750), (7625, 17222), (8611, 15250), (9638, 13625), (9875, 13298)]