15642840

素因数分解:

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

素因数の和:2212

約数の個数: 64

約数和(自身を含む): 47720160

約数和(自身を除く): 32077320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 183, 244, 305, 366, 488, 610, 732, 915, 1220, 1464, 1830, 2137, 2440, 3660, 4274, 6411, 7320, 8548, 10685, 12822, 17096, 21370, 25644, 32055, 42740, 51288, 64110, 85480, 128220, 130357, 256440, 260714, 391071, 521428, 651785, 782142, 1042856, 1303570, 1564284, 1955355, 2607140, 3128568, 3910710, 5214280, 7821420, 15642840]

約数ペア:

[(1, 15642840), (2, 7821420), (3, 5214280), (4, 3910710), (5, 3128568), (6, 2607140), (8, 1955355), (10, 1564284), (12, 1303570), (15, 1042856), (20, 782142), (24, 651785), (30, 521428), (40, 391071), (60, 260714), (61, 256440), (120, 130357), (122, 128220), (183, 85480), (244, 64110), (305, 51288), (366, 42740), (488, 32055), (610, 25644), (732, 21370), (915, 17096), (1220, 12822), (1464, 10685), (1830, 8548), (2137, 7320), (2440, 6411), (3660, 4274)]