397463960

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{3989}}^1$

素因数の和:4100

約数の個数: 64

約数和(自身を含む): 930787200

約数和(自身を除く): 533323240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 53, 94, 106, 188, 212, 235, 265, 376, 424, 470, 530, 940, 1060, 1880, 2120, 2491, 3989, 4982, 7978, 9964, 12455, 15956, 19928, 19945, 24910, 31912, 39890, 49820, 79780, 99640, 159560, 187483, 211417, 374966, 422834, 749932, 845668, 937415, 1057085, 1499864, 1691336, 1874830, 2114170, 3749660, 4228340, 7499320, 8456680, 9936599, 19873198, 39746396, 49682995, 79492792, 99365990, 198731980, 397463960]

約数ペア:

[(1, 397463960), (2, 198731980), (4, 99365990), (5, 79492792), (8, 49682995), (10, 39746396), (20, 19873198), (40, 9936599), (47, 8456680), (53, 7499320), (94, 4228340), (106, 3749660), (188, 2114170), (212, 1874830), (235, 1691336), (265, 1499864), (376, 1057085), (424, 937415), (470, 845668), (530, 749932), (940, 422834), (1060, 374966), (1880, 211417), (2120, 187483), (2491, 159560), (3989, 99640), (4982, 79780), (7978, 49820), (9964, 39890), (12455, 31912), (15956, 24910), (19928, 19945)]