251168980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{2153}}^1$

素因数の和:2488

約数の個数: 48

約数和(自身を含む): 557282880

約数和(自身を除く): 306113900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 307, 380, 614, 1228, 1535, 2153, 3070, 4306, 5833, 6140, 8612, 10765, 11666, 21530, 23332, 29165, 40907, 43060, 58330, 81814, 116660, 163628, 204535, 409070, 660971, 818140, 1321942, 2643884, 3304855, 6609710, 12558449, 13219420, 25116898, 50233796, 62792245, 125584490, 251168980]

約数ペア:

[(1, 251168980), (2, 125584490), (4, 62792245), (5, 50233796), (10, 25116898), (19, 13219420), (20, 12558449), (38, 6609710), (76, 3304855), (95, 2643884), (190, 1321942), (307, 818140), (380, 660971), (614, 409070), (1228, 204535), (1535, 163628), (2153, 116660), (3070, 81814), (4306, 58330), (5833, 43060), (6140, 40907), (8612, 29165), (10765, 23332), (11666, 21530)]