28655250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{2939}}^1$

素因数の和:2972

約数の個数: 64

約数和(自身を含む): 77051520

約数和(自身を除く): 48396270

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 125, 130, 150, 195, 250, 325, 375, 390, 650, 750, 975, 1625, 1950, 2939, 3250, 4875, 5878, 8817, 9750, 14695, 17634, 29390, 38207, 44085, 73475, 76414, 88170, 114621, 146950, 191035, 220425, 229242, 367375, 382070, 440850, 573105, 734750, 955175, 1102125, 1146210, 1910350, 2204250, 2865525, 4775875, 5731050, 9551750, 14327625, 28655250]

約数ペア:

[(1, 28655250), (2, 14327625), (3, 9551750), (5, 5731050), (6, 4775875), (10, 2865525), (13, 2204250), (15, 1910350), (25, 1146210), (26, 1102125), (30, 955175), (39, 734750), (50, 573105), (65, 440850), (75, 382070), (78, 367375), (125, 229242), (130, 220425), (150, 191035), (195, 146950), (250, 114621), (325, 88170), (375, 76414), (390, 73475), (650, 44085), (750, 38207), (975, 29390), (1625, 17634), (1950, 14695), (2939, 9750), (3250, 8817), (4875, 5878)]