20402688

素因数分解:

$2^9\times 3^1\times {\mathrm{37}}^1\times {\mathrm{359}}^1$

素因数の和:417

約数の個数: 80

約数和(自身を含む): 55978560

約数和(自身を除く): 35575872

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 37, 48, 64, 74, 96, 111, 128, 148, 192, 222, 256, 296, 359, 384, 444, 512, 592, 718, 768, 888, 1077, 1184, 1436, 1536, 1776, 2154, 2368, 2872, 3552, 4308, 4736, 5744, 7104, 8616, 9472, 11488, 13283, 14208, 17232, 18944, 22976, 26566, 28416, 34464, 39849, 45952, 53132, 56832, 68928, 79698, 91904, 106264, 137856, 159396, 183808, 212528, 275712, 318792, 425056, 551424, 637584, 850112, 1275168, 1700224, 2550336, 3400448, 5100672, 6800896, 10201344, 20402688]

約数ペア:

[(1, 20402688), (2, 10201344), (3, 6800896), (4, 5100672), (6, 3400448), (8, 2550336), (12, 1700224), (16, 1275168), (24, 850112), (32, 637584), (37, 551424), (48, 425056), (64, 318792), (74, 275712), (96, 212528), (111, 183808), (128, 159396), (148, 137856), (192, 106264), (222, 91904), (256, 79698), (296, 68928), (359, 56832), (384, 53132), (444, 45952), (512, 39849), (592, 34464), (718, 28416), (768, 26566), (888, 22976), (1077, 18944), (1184, 17232), (1436, 14208), (1536, 13283), (1776, 11488), (2154, 9472), (2368, 8616), (2872, 7104), (3552, 5744), (4308, 4736)]