20135640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23971}}^1$

素因数の和:23992

約数の個数: 64

約数和(自身を含む): 69039360

約数和(自身を除く): 48903720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 23971, 47942, 71913, 95884, 119855, 143826, 167797, 191768, 239710, 287652, 335594, 359565, 479420, 503391, 575304, 671188, 719130, 838985, 958840, 1006782, 1342376, 1438260, 1677970, 2013564, 2516955, 2876520, 3355940, 4027128, 5033910, 6711880, 10067820, 20135640]

約数ペア:

[(1, 20135640), (2, 10067820), (3, 6711880), (4, 5033910), (5, 4027128), (6, 3355940), (7, 2876520), (8, 2516955), (10, 2013564), (12, 1677970), (14, 1438260), (15, 1342376), (20, 1006782), (21, 958840), (24, 838985), (28, 719130), (30, 671188), (35, 575304), (40, 503391), (42, 479420), (56, 359565), (60, 335594), (70, 287652), (84, 239710), (105, 191768), (120, 167797), (140, 143826), (168, 119855), (210, 95884), (280, 71913), (420, 47942), (840, 23971)]