7821420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2137}}^1$

素因数の和:2210

約数の個数: 48

約数和(自身を含む): 22269408

約数和(自身を除く): 14447988

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 366, 610, 732, 915, 1220, 1830, 2137, 3660, 4274, 6411, 8548, 10685, 12822, 21370, 25644, 32055, 42740, 64110, 128220, 130357, 260714, 391071, 521428, 651785, 782142, 1303570, 1564284, 1955355, 2607140, 3910710, 7821420]

約数ペア:

[(1, 7821420), (2, 3910710), (3, 2607140), (4, 1955355), (5, 1564284), (6, 1303570), (10, 782142), (12, 651785), (15, 521428), (20, 391071), (30, 260714), (60, 130357), (61, 128220), (122, 64110), (183, 42740), (244, 32055), (305, 25644), (366, 21370), (610, 12822), (732, 10685), (915, 8548), (1220, 6411), (1830, 4274), (2137, 3660)]