21768750

素因数分解:

$2^1\times 3^4\times 5^5\times {\mathrm{43}}^1$

素因数の和:82

約数の個数: 120

約数和(自身を含む): 62386632

約数和(自身を除く): 40617882

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 43, 45, 50, 54, 75, 81, 86, 90, 125, 129, 135, 150, 162, 215, 225, 250, 258, 270, 375, 387, 405, 430, 450, 625, 645, 675, 750, 774, 810, 1075, 1125, 1161, 1250, 1290, 1350, 1875, 1935, 2025, 2150, 2250, 2322, 3125, 3225, 3375, 3483, 3750, 3870, 4050, 5375, 5625, 5805, 6250, 6450, 6750, 6966, 9375, 9675, 10125, 10750, 11250, 11610, 16125, 16875, 17415, 18750, 19350, 20250, 26875, 28125, 29025, 32250, 33750, 34830, 48375, 50625, 53750, 56250, 58050, 80625, 84375, 87075, 96750, 101250, 134375, 145125, 161250, 168750, 174150, 241875, 253125, 268750, 290250, 403125, 435375, 483750, 506250, 725625, 806250, 870750, 1209375, 1451250, 2176875, 2418750, 3628125, 4353750, 7256250, 10884375, 21768750]

約数ペア:

[(1, 21768750), (2, 10884375), (3, 7256250), (5, 4353750), (6, 3628125), (9, 2418750), (10, 2176875), (15, 1451250), (18, 1209375), (25, 870750), (27, 806250), (30, 725625), (43, 506250), (45, 483750), (50, 435375), (54, 403125), (75, 290250), (81, 268750), (86, 253125), (90, 241875), (125, 174150), (129, 168750), (135, 161250), (150, 145125), (162, 134375), (215, 101250), (225, 96750), (250, 87075), (258, 84375), (270, 80625), (375, 58050), (387, 56250), (405, 53750), (430, 50625), (450, 48375), (625, 34830), (645, 33750), (675, 32250), (750, 29025), (774, 28125), (810, 26875), (1075, 20250), (1125, 19350), (1161, 18750), (1250, 17415), (1290, 16875), (1350, 16125), (1875, 11610), (1935, 11250), (2025, 10750), (2150, 10125), (2250, 9675), (2322, 9375), (3125, 6966), (3225, 6750), (3375, 6450), (3483, 6250), (3750, 5805), (3870, 5625), (4050, 5375)]