2515500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1$

素因数の和:81

約数の個数: 144

約数和(自身を含む): 8744736

約数和(自身を除く): 6229236

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 25, 26, 30, 36, 39, 43, 45, 50, 52, 60, 65, 75, 78, 86, 90, 100, 117, 125, 129, 130, 150, 156, 172, 180, 195, 215, 225, 234, 250, 258, 260, 300, 325, 375, 387, 390, 430, 450, 468, 500, 516, 559, 585, 645, 650, 750, 774, 780, 860, 900, 975, 1075, 1118, 1125, 1170, 1290, 1300, 1500, 1548, 1625, 1677, 1935, 1950, 2150, 2236, 2250, 2340, 2580, 2795, 2925, 3225, 3250, 3354, 3870, 3900, 4300, 4500, 4875, 5031, 5375, 5590, 5850, 6450, 6500, 6708, 7740, 8385, 9675, 9750, 10062, 10750, 11180, 11700, 12900, 13975, 14625, 16125, 16770, 19350, 19500, 20124, 21500, 25155, 27950, 29250, 32250, 33540, 38700, 41925, 48375, 50310, 55900, 58500, 64500, 69875, 83850, 96750, 100620, 125775, 139750, 167700, 193500, 209625, 251550, 279500, 419250, 503100, 628875, 838500, 1257750, 2515500]

約数ペア:

[(1, 2515500), (2, 1257750), (3, 838500), (4, 628875), (5, 503100), (6, 419250), (9, 279500), (10, 251550), (12, 209625), (13, 193500), (15, 167700), (18, 139750), (20, 125775), (25, 100620), (26, 96750), (30, 83850), (36, 69875), (39, 64500), (43, 58500), (45, 55900), (50, 50310), (52, 48375), (60, 41925), (65, 38700), (75, 33540), (78, 32250), (86, 29250), (90, 27950), (100, 25155), (117, 21500), (125, 20124), (129, 19500), (130, 19350), (150, 16770), (156, 16125), (172, 14625), (180, 13975), (195, 12900), (215, 11700), (225, 11180), (234, 10750), (250, 10062), (258, 9750), (260, 9675), (300, 8385), (325, 7740), (375, 6708), (387, 6500), (390, 6450), (430, 5850), (450, 5590), (468, 5375), (500, 5031), (516, 4875), (559, 4500), (585, 4300), (645, 3900), (650, 3870), (750, 3354), (774, 3250), (780, 3225), (860, 2925), (900, 2795), (975, 2580), (1075, 2340), (1118, 2250), (1125, 2236), (1170, 2150), (1290, 1950), (1300, 1935), (1500, 1677), (1548, 1625)]