21985280

素因数分解:

$2^{11}\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1$

素因数の和:159

約数の個数: 96

約数和(自身を含む): 56019600

約数和(自身を除く): 34034320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 113, 128, 152, 160, 190, 226, 256, 304, 320, 380, 452, 512, 565, 608, 640, 760, 904, 1024, 1130, 1216, 1280, 1520, 1808, 2048, 2147, 2260, 2432, 2560, 3040, 3616, 4294, 4520, 4864, 5120, 6080, 7232, 8588, 9040, 9728, 10240, 10735, 12160, 14464, 17176, 18080, 19456, 21470, 24320, 28928, 34352, 36160, 38912, 42940, 48640, 57856, 68704, 72320, 85880, 97280, 115712, 137408, 144640, 171760, 194560, 231424, 274816, 289280, 343520, 549632, 578560, 687040, 1099264, 1157120, 1374080, 2198528, 2748160, 4397056, 5496320, 10992640, 21985280]

約数ペア:

[(1, 21985280), (2, 10992640), (4, 5496320), (5, 4397056), (8, 2748160), (10, 2198528), (16, 1374080), (19, 1157120), (20, 1099264), (32, 687040), (38, 578560), (40, 549632), (64, 343520), (76, 289280), (80, 274816), (95, 231424), (113, 194560), (128, 171760), (152, 144640), (160, 137408), (190, 115712), (226, 97280), (256, 85880), (304, 72320), (320, 68704), (380, 57856), (452, 48640), (512, 42940), (565, 38912), (608, 36160), (640, 34352), (760, 28928), (904, 24320), (1024, 21470), (1130, 19456), (1216, 18080), (1280, 17176), (1520, 14464), (1808, 12160), (2048, 10735), (2147, 10240), (2260, 9728), (2432, 9040), (2560, 8588), (3040, 7232), (3616, 6080), (4294, 5120), (4520, 4864)]