221454080

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5581}}^1$

素因数の和:5633

約数の個数: 72

約数和(自身を含む): 547661184

約数和(自身を除く): 326207104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 5581, 7936, 9920, 11162, 19840, 22324, 27905, 39680, 44648, 55810, 89296, 111620, 173011, 178592, 223240, 346022, 357184, 446480, 692044, 714368, 865055, 892960, 1384088, 1428736, 1730110, 1785920, 2768176, 3460220, 3571840, 5536352, 6920440, 7143680, 11072704, 13840880, 22145408, 27681760, 44290816, 55363520, 110727040, 221454080]

約数ペア:

[(1, 221454080), (2, 110727040), (4, 55363520), (5, 44290816), (8, 27681760), (10, 22145408), (16, 13840880), (20, 11072704), (31, 7143680), (32, 6920440), (40, 5536352), (62, 3571840), (64, 3460220), (80, 2768176), (124, 1785920), (128, 1730110), (155, 1428736), (160, 1384088), (248, 892960), (256, 865055), (310, 714368), (320, 692044), (496, 446480), (620, 357184), (640, 346022), (992, 223240), (1240, 178592), (1280, 173011), (1984, 111620), (2480, 89296), (3968, 55810), (4960, 44648), (5581, 39680), (7936, 27905), (9920, 22324), (11162, 19840)]