31002680

素因数分解:

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

素因数の和:181

約数の個数: 64

約数和(自身を含む): 74282400

約数和(自身を除く): 43279720

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, 6859, 7220, 8588, 10735, 13718, 14440, 17176, 21470, 27436, 34295, 40793, 42940, 54872, 68590, 81586, 85880, 137180, 163172, 203965, 274360, 326344, 407930, 775067, 815860, 1550134, 1631720, 3100268, 3875335, 6200536, 7750670, 15501340, 31002680]

約数ペア:

[(1, 31002680), (2, 15501340), (4, 7750670), (5, 6200536), (8, 3875335), (10, 3100268), (19, 1631720), (20, 1550134), (38, 815860), (40, 775067), (76, 407930), (95, 326344), (113, 274360), (152, 203965), (190, 163172), (226, 137180), (361, 85880), (380, 81586), (452, 68590), (565, 54872), (722, 42940), (760, 40793), (904, 34295), (1130, 27436), (1444, 21470), (1805, 17176), (2147, 14440), (2260, 13718), (2888, 10735), (3610, 8588), (4294, 7220), (4520, 6859)]