31305920

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^2\times {\mathrm{271}}^1$

素因数の和:326

約数の個数: 84

約数和(自身を含む): 78967584

約数和(自身を除く): 47661664

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 271, 304, 320, 361, 380, 542, 608, 722, 760, 1084, 1216, 1355, 1444, 1520, 1805, 2168, 2710, 2888, 3040, 3610, 4336, 5149, 5420, 5776, 6080, 7220, 8672, 10298, 10840, 11552, 14440, 17344, 20596, 21680, 23104, 25745, 28880, 41192, 43360, 51490, 57760, 82384, 86720, 97831, 102980, 115520, 164768, 195662, 205960, 329536, 391324, 411920, 489155, 782648, 823840, 978310, 1565296, 1647680, 1956620, 3130592, 3913240, 6261184, 7826480, 15652960, 31305920]

約数ペア:

[(1, 31305920), (2, 15652960), (4, 7826480), (5, 6261184), (8, 3913240), (10, 3130592), (16, 1956620), (19, 1647680), (20, 1565296), (32, 978310), (38, 823840), (40, 782648), (64, 489155), (76, 411920), (80, 391324), (95, 329536), (152, 205960), (160, 195662), (190, 164768), (271, 115520), (304, 102980), (320, 97831), (361, 86720), (380, 82384), (542, 57760), (608, 51490), (722, 43360), (760, 41192), (1084, 28880), (1216, 25745), (1355, 23104), (1444, 21680), (1520, 20596), (1805, 17344), (2168, 14440), (2710, 11552), (2888, 10840), (3040, 10298), (3610, 8672), (4336, 7220), (5149, 6080), (5420, 5776)]