2178900

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{269}}^1$

素因数の和:295

約数の個数: 90

約数和(自身を含む): 7089390

約数和(自身を除く): 4910490

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 135, 150, 162, 180, 225, 269, 270, 300, 324, 405, 450, 538, 540, 675, 807, 810, 900, 1076, 1345, 1350, 1614, 1620, 2025, 2421, 2690, 2700, 3228, 4035, 4050, 4842, 5380, 6725, 7263, 8070, 8100, 9684, 12105, 13450, 14526, 16140, 20175, 21789, 24210, 26900, 29052, 36315, 40350, 43578, 48420, 60525, 72630, 80700, 87156, 108945, 121050, 145260, 181575, 217890, 242100, 363150, 435780, 544725, 726300, 1089450, 2178900]

約数ペア:

[(1, 2178900), (2, 1089450), (3, 726300), (4, 544725), (5, 435780), (6, 363150), (9, 242100), (10, 217890), (12, 181575), (15, 145260), (18, 121050), (20, 108945), (25, 87156), (27, 80700), (30, 72630), (36, 60525), (45, 48420), (50, 43578), (54, 40350), (60, 36315), (75, 29052), (81, 26900), (90, 24210), (100, 21789), (108, 20175), (135, 16140), (150, 14526), (162, 13450), (180, 12105), (225, 9684), (269, 8100), (270, 8070), (300, 7263), (324, 6725), (405, 5380), (450, 4842), (538, 4050), (540, 4035), (675, 3228), (807, 2700), (810, 2690), (900, 2421), (1076, 2025), (1345, 1620), (1350, 1614)]