214021520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{409}}^1$

素因数の和:664

約数の個数: 80

約数和(自身を含む): 517347840

約数和(自身を除く): 303326320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 211, 248, 310, 409, 422, 496, 620, 818, 844, 1055, 1240, 1636, 1688, 2045, 2110, 2480, 3272, 3376, 4090, 4220, 6541, 6544, 8180, 8440, 12679, 13082, 16360, 16880, 25358, 26164, 32705, 32720, 50716, 52328, 63395, 65410, 86299, 101432, 104656, 126790, 130820, 172598, 202864, 253580, 261640, 345196, 431495, 507160, 523280, 690392, 862990, 1014320, 1380784, 1725980, 2675269, 3451960, 5350538, 6903920, 10701076, 13376345, 21402152, 26752690, 42804304, 53505380, 107010760, 214021520]

約数ペア:

[(1, 214021520), (2, 107010760), (4, 53505380), (5, 42804304), (8, 26752690), (10, 21402152), (16, 13376345), (20, 10701076), (31, 6903920), (40, 5350538), (62, 3451960), (80, 2675269), (124, 1725980), (155, 1380784), (211, 1014320), (248, 862990), (310, 690392), (409, 523280), (422, 507160), (496, 431495), (620, 345196), (818, 261640), (844, 253580), (1055, 202864), (1240, 172598), (1636, 130820), (1688, 126790), (2045, 104656), (2110, 101432), (2480, 86299), (3272, 65410), (3376, 63395), (4090, 52328), (4220, 50716), (6541, 32720), (6544, 32705), (8180, 26164), (8440, 25358), (12679, 16880), (13082, 16360)]