7998320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:234

約数の個数: 80

約数和(自身を含む): 20757600

約数和(自身を除く): 12759280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 61, 80, 88, 110, 122, 149, 176, 220, 244, 298, 305, 440, 488, 596, 610, 671, 745, 880, 976, 1192, 1220, 1342, 1490, 1639, 2384, 2440, 2684, 2980, 3278, 3355, 4880, 5368, 5960, 6556, 6710, 8195, 9089, 10736, 11920, 13112, 13420, 16390, 18178, 26224, 26840, 32780, 36356, 45445, 53680, 65560, 72712, 90890, 99979, 131120, 145424, 181780, 199958, 363560, 399916, 499895, 727120, 799832, 999790, 1599664, 1999580, 3999160, 7998320]

約数ペア:

[(1, 7998320), (2, 3999160), (4, 1999580), (5, 1599664), (8, 999790), (10, 799832), (11, 727120), (16, 499895), (20, 399916), (22, 363560), (40, 199958), (44, 181780), (55, 145424), (61, 131120), (80, 99979), (88, 90890), (110, 72712), (122, 65560), (149, 53680), (176, 45445), (220, 36356), (244, 32780), (298, 26840), (305, 26224), (440, 18178), (488, 16390), (596, 13420), (610, 13112), (671, 11920), (745, 10736), (880, 9089), (976, 8195), (1192, 6710), (1220, 6556), (1342, 5960), (1490, 5368), (1639, 4880), (2384, 3355), (2440, 3278), (2684, 2980)]