20757072

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{379}}^1$

素因数の和:560

約数の個数: 80

約数和(自身を含む): 61821440

約数和(自身を除く): 41064368

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 163, 168, 326, 336, 379, 489, 652, 758, 978, 1137, 1141, 1304, 1516, 1956, 2274, 2282, 2608, 2653, 3032, 3423, 3912, 4548, 4564, 5306, 6064, 6846, 7824, 7959, 9096, 9128, 10612, 13692, 15918, 18192, 18256, 21224, 27384, 31836, 42448, 54768, 61777, 63672, 123554, 127344, 185331, 247108, 370662, 432439, 494216, 741324, 864878, 988432, 1297317, 1482648, 1729756, 2594634, 2965296, 3459512, 5189268, 6919024, 10378536, 20757072]

約数ペア:

[(1, 20757072), (2, 10378536), (3, 6919024), (4, 5189268), (6, 3459512), (7, 2965296), (8, 2594634), (12, 1729756), (14, 1482648), (16, 1297317), (21, 988432), (24, 864878), (28, 741324), (42, 494216), (48, 432439), (56, 370662), (84, 247108), (112, 185331), (163, 127344), (168, 123554), (326, 63672), (336, 61777), (379, 54768), (489, 42448), (652, 31836), (758, 27384), (978, 21224), (1137, 18256), (1141, 18192), (1304, 15918), (1516, 13692), (1956, 10612), (2274, 9128), (2282, 9096), (2608, 7959), (2653, 7824), (3032, 6846), (3423, 6064), (3912, 5306), (4548, 4564)]