38643980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{397}}^1$

素因数の和:594

約数の個数: 48

約数和(自身を含む): 84516096

約数和(自身を除く): 45872116

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 157, 310, 314, 397, 620, 628, 785, 794, 1570, 1588, 1985, 3140, 3970, 4867, 7940, 9734, 12307, 19468, 24335, 24614, 48670, 49228, 61535, 62329, 97340, 123070, 124658, 246140, 249316, 311645, 623290, 1246580, 1932199, 3864398, 7728796, 9660995, 19321990, 38643980]

約数ペア:

[(1, 38643980), (2, 19321990), (4, 9660995), (5, 7728796), (10, 3864398), (20, 1932199), (31, 1246580), (62, 623290), (124, 311645), (155, 249316), (157, 246140), (310, 124658), (314, 123070), (397, 97340), (620, 62329), (628, 61535), (785, 49228), (794, 48670), (1570, 24614), (1588, 24335), (1985, 19468), (3140, 12307), (3970, 9734), (4867, 7940)]