439708640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20663}}^1$

素因数の和:20704

約数の個数: 96

約数和(自身を含む): 1249758720

約数和(自身を除く): 810050080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 160, 190, 224, 266, 280, 304, 380, 532, 560, 608, 665, 760, 1064, 1120, 1330, 1520, 2128, 2660, 3040, 4256, 5320, 10640, 20663, 21280, 41326, 82652, 103315, 144641, 165304, 206630, 289282, 330608, 392597, 413260, 578564, 661216, 723205, 785194, 826520, 1157128, 1446410, 1570388, 1653040, 1962985, 2314256, 2748179, 2892820, 3140776, 3306080, 3925970, 4628512, 5496358, 5785640, 6281552, 7851940, 10992716, 11571280, 12563104, 13740895, 15703880, 21985432, 23142560, 27481790, 31407760, 43970864, 54963580, 62815520, 87941728, 109927160, 219854320, 439708640]

約数ペア:

[(1, 439708640), (2, 219854320), (4, 109927160), (5, 87941728), (7, 62815520), (8, 54963580), (10, 43970864), (14, 31407760), (16, 27481790), (19, 23142560), (20, 21985432), (28, 15703880), (32, 13740895), (35, 12563104), (38, 11571280), (40, 10992716), (56, 7851940), (70, 6281552), (76, 5785640), (80, 5496358), (95, 4628512), (112, 3925970), (133, 3306080), (140, 3140776), (152, 2892820), (160, 2748179), (190, 2314256), (224, 1962985), (266, 1653040), (280, 1570388), (304, 1446410), (380, 1157128), (532, 826520), (560, 785194), (608, 723205), (665, 661216), (760, 578564), (1064, 413260), (1120, 392597), (1330, 330608), (1520, 289282), (2128, 206630), (2660, 165304), (3040, 144641), (4256, 103315), (5320, 82652), (10640, 41326), (20663, 21280)]