1631720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{113}}^1$

素因数の和:162

約数の個数: 48

約数和(自身を含む): 3909060

約数和(自身を除く): 2277340

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 113, 152, 190, 226, 361, 380, 452, 565, 722, 760, 904, 1130, 1444, 1805, 2147, 2260, 2888, 3610, 4294, 4520, 7220, 8588, 10735, 14440, 17176, 21470, 40793, 42940, 81586, 85880, 163172, 203965, 326344, 407930, 815860, 1631720]

約数ペア:

[(1, 1631720), (2, 815860), (4, 407930), (5, 326344), (8, 203965), (10, 163172), (19, 85880), (20, 81586), (38, 42940), (40, 40793), (76, 21470), (95, 17176), (113, 14440), (152, 10735), (190, 8588), (226, 7220), (361, 4520), (380, 4294), (452, 3610), (565, 2888), (722, 2260), (760, 2147), (904, 1805), (1130, 1444)]