180878250

素因数分解:

$2^1\times 3^1\times 5^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:421

約数の個数: 128

約数和(自身を含む): 521883648

約数和(自身を除く): 341005398

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 70, 75, 105, 125, 131, 150, 175, 210, 250, 262, 263, 350, 375, 393, 525, 526, 655, 750, 786, 789, 875, 917, 1050, 1310, 1315, 1578, 1750, 1834, 1841, 1965, 2625, 2630, 2751, 3275, 3682, 3930, 3945, 4585, 5250, 5502, 5523, 6550, 6575, 7890, 9170, 9205, 9825, 11046, 13150, 13755, 16375, 18410, 19650, 19725, 22925, 27510, 27615, 32750, 32875, 34453, 39450, 45850, 46025, 49125, 55230, 65750, 68775, 68906, 92050, 98250, 98625, 103359, 114625, 137550, 138075, 172265, 197250, 206718, 229250, 230125, 241171, 276150, 343875, 344530, 460250, 482342, 516795, 687750, 690375, 723513, 861325, 1033590, 1205855, 1380750, 1447026, 1722650, 2411710, 2583975, 3617565, 4306625, 5167950, 6029275, 7235130, 8613250, 12058550, 12919875, 18087825, 25839750, 30146375, 36175650, 60292750, 90439125, 180878250]

約数ペア:

[(1, 180878250), (2, 90439125), (3, 60292750), (5, 36175650), (6, 30146375), (7, 25839750), (10, 18087825), (14, 12919875), (15, 12058550), (21, 8613250), (25, 7235130), (30, 6029275), (35, 5167950), (42, 4306625), (50, 3617565), (70, 2583975), (75, 2411710), (105, 1722650), (125, 1447026), (131, 1380750), (150, 1205855), (175, 1033590), (210, 861325), (250, 723513), (262, 690375), (263, 687750), (350, 516795), (375, 482342), (393, 460250), (525, 344530), (526, 343875), (655, 276150), (750, 241171), (786, 230125), (789, 229250), (875, 206718), (917, 197250), (1050, 172265), (1310, 138075), (1315, 137550), (1578, 114625), (1750, 103359), (1834, 98625), (1841, 98250), (1965, 92050), (2625, 68906), (2630, 68775), (2751, 65750), (3275, 55230), (3682, 49125), (3930, 46025), (3945, 45850), (4585, 39450), (5250, 34453), (5502, 32875), (5523, 32750), (6550, 27615), (6575, 27510), (7890, 22925), (9170, 19725), (9205, 19650), (9825, 18410), (11046, 16375), (13150, 13755)]