989731620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{61781}}^1$

素因数の和:61885

約数の個数: 72

約数和(自身を含む): 3035967480

約数和(自身を除く): 2046235860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 801, 890, 1068, 1335, 1602, 1780, 2670, 3204, 4005, 5340, 8010, 16020, 61781, 123562, 185343, 247124, 308905, 370686, 556029, 617810, 741372, 926715, 1112058, 1235620, 1853430, 2224116, 2780145, 3706860, 5498509, 5560290, 10997018, 11120580, 16495527, 21994036, 27492545, 32991054, 49486581, 54985090, 65982108, 82477635, 98973162, 109970180, 164955270, 197946324, 247432905, 329910540, 494865810, 989731620]

約数ペア:

[(1, 989731620), (2, 494865810), (3, 329910540), (4, 247432905), (5, 197946324), (6, 164955270), (9, 109970180), (10, 98973162), (12, 82477635), (15, 65982108), (18, 54985090), (20, 49486581), (30, 32991054), (36, 27492545), (45, 21994036), (60, 16495527), (89, 11120580), (90, 10997018), (178, 5560290), (180, 5498509), (267, 3706860), (356, 2780145), (445, 2224116), (534, 1853430), (801, 1235620), (890, 1112058), (1068, 926715), (1335, 741372), (1602, 617810), (1780, 556029), (2670, 370686), (3204, 308905), (4005, 247124), (5340, 185343), (8010, 123562), (16020, 61781)]