15909820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{383}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 35094528

約数和(自身を除く): 19184708

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 67, 124, 134, 155, 268, 310, 335, 383, 620, 670, 766, 1340, 1532, 1915, 2077, 3830, 4154, 7660, 8308, 10385, 11873, 20770, 23746, 25661, 41540, 47492, 51322, 59365, 102644, 118730, 128305, 237460, 256610, 513220, 795491, 1590982, 3181964, 3977455, 7954910, 15909820]

約数ペア:

[(1, 15909820), (2, 7954910), (4, 3977455), (5, 3181964), (10, 1590982), (20, 795491), (31, 513220), (62, 256610), (67, 237460), (124, 128305), (134, 118730), (155, 102644), (268, 59365), (310, 51322), (335, 47492), (383, 41540), (620, 25661), (670, 23746), (766, 20770), (1340, 11873), (1532, 10385), (1915, 8308), (2077, 7660), (3830, 4154)]