123021520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^3\times {\mathrm{313}}^1$

素因数の和:377

約数の個数: 80

約数和(自身を含む): 304868880

約数和(自身を除く): 181847360

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 289, 313, 340, 578, 626, 680, 1156, 1252, 1360, 1445, 1565, 2312, 2504, 2890, 3130, 4624, 4913, 5008, 5321, 5780, 6260, 9826, 10642, 11560, 12520, 19652, 21284, 23120, 24565, 25040, 26605, 39304, 42568, 49130, 53210, 78608, 85136, 90457, 98260, 106420, 180914, 196520, 212840, 361828, 393040, 425680, 452285, 723656, 904570, 1447312, 1537769, 1809140, 3075538, 3618280, 6151076, 7236560, 7688845, 12302152, 15377690, 24604304, 30755380, 61510760, 123021520]

約数ペア:

[(1, 123021520), (2, 61510760), (4, 30755380), (5, 24604304), (8, 15377690), (10, 12302152), (16, 7688845), (17, 7236560), (20, 6151076), (34, 3618280), (40, 3075538), (68, 1809140), (80, 1537769), (85, 1447312), (136, 904570), (170, 723656), (272, 452285), (289, 425680), (313, 393040), (340, 361828), (578, 212840), (626, 196520), (680, 180914), (1156, 106420), (1252, 98260), (1360, 90457), (1445, 85136), (1565, 78608), (2312, 53210), (2504, 49130), (2890, 42568), (3130, 39304), (4624, 26605), (4913, 25040), (5008, 24565), (5321, 23120), (5780, 21284), (6260, 19652), (9826, 12520), (10642, 11560)]