387594860

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{21557}}^1$

素因数の和:21626

約数の個数: 48

約数和(自身を含む): 869218560

約数和(自身を除く): 481623700

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 116, 124, 145, 155, 290, 310, 580, 620, 899, 1798, 3596, 4495, 8990, 17980, 21557, 43114, 86228, 107785, 215570, 431140, 625153, 668267, 1250306, 1336534, 2500612, 2673068, 3125765, 3341335, 6251530, 6682670, 12503060, 13365340, 19379743, 38759486, 77518972, 96898715, 193797430, 387594860]

約数ペア:

[(1, 387594860), (2, 193797430), (4, 96898715), (5, 77518972), (10, 38759486), (20, 19379743), (29, 13365340), (31, 12503060), (58, 6682670), (62, 6251530), (116, 3341335), (124, 3125765), (145, 2673068), (155, 2500612), (290, 1336534), (310, 1250306), (580, 668267), (620, 625153), (899, 431140), (1798, 215570), (3596, 107785), (4495, 86228), (8990, 43114), (17980, 21557)]