7865000

素因数分解:

$2^3\times 5^4\times {\mathrm{11}}^2\times {\mathrm{13}}^1$

素因数の和:61

約数の個数: 120

約数和(自身を含む): 21813330

約数和(自身を除く): 13948330

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 25, 26, 40, 44, 50, 52, 55, 65, 88, 100, 104, 110, 121, 125, 130, 143, 200, 220, 242, 250, 260, 275, 286, 325, 440, 484, 500, 520, 550, 572, 605, 625, 650, 715, 968, 1000, 1100, 1144, 1210, 1250, 1300, 1375, 1430, 1573, 1625, 2200, 2420, 2500, 2600, 2750, 2860, 3025, 3146, 3250, 3575, 4840, 5000, 5500, 5720, 6050, 6292, 6500, 6875, 7150, 7865, 8125, 11000, 12100, 12584, 13000, 13750, 14300, 15125, 15730, 16250, 17875, 24200, 27500, 28600, 30250, 31460, 32500, 35750, 39325, 55000, 60500, 62920, 65000, 71500, 75625, 78650, 89375, 121000, 143000, 151250, 157300, 178750, 196625, 302500, 314600, 357500, 393250, 605000, 715000, 786500, 983125, 1573000, 1966250, 3932500, 7865000]

約数ペア:

[(1, 7865000), (2, 3932500), (4, 1966250), (5, 1573000), (8, 983125), (10, 786500), (11, 715000), (13, 605000), (20, 393250), (22, 357500), (25, 314600), (26, 302500), (40, 196625), (44, 178750), (50, 157300), (52, 151250), (55, 143000), (65, 121000), (88, 89375), (100, 78650), (104, 75625), (110, 71500), (121, 65000), (125, 62920), (130, 60500), (143, 55000), (200, 39325), (220, 35750), (242, 32500), (250, 31460), (260, 30250), (275, 28600), (286, 27500), (325, 24200), (440, 17875), (484, 16250), (500, 15730), (520, 15125), (550, 14300), (572, 13750), (605, 13000), (625, 12584), (650, 12100), (715, 11000), (968, 8125), (1000, 7865), (1100, 7150), (1144, 6875), (1210, 6500), (1250, 6292), (1300, 6050), (1375, 5720), (1430, 5500), (1573, 5000), (1625, 4840), (2200, 3575), (2420, 3250), (2500, 3146), (2600, 3025), (2750, 2860)]