868741520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{2351}}^1$

素因数の和:2544

約数の個数: 80

約数和(自身を含む): 2099865600

約数和(自身を除く): 1231124080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 149, 155, 248, 298, 310, 496, 596, 620, 745, 1192, 1240, 1490, 2351, 2384, 2480, 2980, 4619, 4702, 5960, 9238, 9404, 11755, 11920, 18476, 18808, 23095, 23510, 36952, 37616, 46190, 47020, 72881, 73904, 92380, 94040, 145762, 184760, 188080, 291524, 350299, 364405, 369520, 583048, 700598, 728810, 1166096, 1401196, 1457620, 1751495, 2802392, 2915240, 3502990, 5604784, 5830480, 7005980, 10859269, 14011960, 21718538, 28023920, 43437076, 54296345, 86874152, 108592690, 173748304, 217185380, 434370760, 868741520]

約数ペア:

[(1, 868741520), (2, 434370760), (4, 217185380), (5, 173748304), (8, 108592690), (10, 86874152), (16, 54296345), (20, 43437076), (31, 28023920), (40, 21718538), (62, 14011960), (80, 10859269), (124, 7005980), (149, 5830480), (155, 5604784), (248, 3502990), (298, 2915240), (310, 2802392), (496, 1751495), (596, 1457620), (620, 1401196), (745, 1166096), (1192, 728810), (1240, 700598), (1490, 583048), (2351, 369520), (2384, 364405), (2480, 350299), (2980, 291524), (4619, 188080), (4702, 184760), (5960, 145762), (9238, 94040), (9404, 92380), (11755, 73904), (11920, 72881), (18476, 47020), (18808, 46190), (23095, 37616), (23510, 36952)]