21535440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1471}}^1$

素因数の和:1548

約数の個数: 80

約数和(自身を含む): 67900416

約数和(自身を除く): 46364976

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 61, 80, 120, 122, 183, 240, 244, 305, 366, 488, 610, 732, 915, 976, 1220, 1464, 1471, 1830, 2440, 2928, 2942, 3660, 4413, 4880, 5884, 7320, 7355, 8826, 11768, 14640, 14710, 17652, 22065, 23536, 29420, 35304, 44130, 58840, 70608, 88260, 89731, 117680, 176520, 179462, 269193, 353040, 358924, 448655, 538386, 717848, 897310, 1076772, 1345965, 1435696, 1794620, 2153544, 2691930, 3589240, 4307088, 5383860, 7178480, 10767720, 21535440]

約数ペア:

[(1, 21535440), (2, 10767720), (3, 7178480), (4, 5383860), (5, 4307088), (6, 3589240), (8, 2691930), (10, 2153544), (12, 1794620), (15, 1435696), (16, 1345965), (20, 1076772), (24, 897310), (30, 717848), (40, 538386), (48, 448655), (60, 358924), (61, 353040), (80, 269193), (120, 179462), (122, 176520), (183, 117680), (240, 89731), (244, 88260), (305, 70608), (366, 58840), (488, 44130), (610, 35304), (732, 29420), (915, 23536), (976, 22065), (1220, 17652), (1464, 14710), (1471, 14640), (1830, 11768), (2440, 8826), (2928, 7355), (2942, 7320), (3660, 5884), (4413, 4880)]