81056320

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{8171}}^1$

素因数の和:8219

約数の個数: 56

約数和(自身を含む): 199266048

約数和(自身を除く): 118209728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 8171, 9920, 16342, 32684, 40855, 65368, 81710, 130736, 163420, 253301, 261472, 326840, 506602, 522944, 653680, 1013204, 1266505, 1307360, 2026408, 2533010, 2614720, 4052816, 5066020, 8105632, 10132040, 16211264, 20264080, 40528160, 81056320]

約数ペア:

[(1, 81056320), (2, 40528160), (4, 20264080), (5, 16211264), (8, 10132040), (10, 8105632), (16, 5066020), (20, 4052816), (31, 2614720), (32, 2533010), (40, 2026408), (62, 1307360), (64, 1266505), (80, 1013204), (124, 653680), (155, 522944), (160, 506602), (248, 326840), (310, 261472), (320, 253301), (496, 163420), (620, 130736), (992, 81710), (1240, 65368), (1984, 40855), (2480, 32684), (4960, 16342), (8171, 9920)]