31715960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{233}}^1$

素因数の和:368

約数の個数: 64

約数和(自身を含む): 74299680

約数和(自身を除く): 42583720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 83, 164, 166, 205, 233, 328, 332, 410, 415, 466, 664, 820, 830, 932, 1165, 1640, 1660, 1864, 2330, 3320, 3403, 4660, 6806, 9320, 9553, 13612, 17015, 19106, 19339, 27224, 34030, 38212, 38678, 47765, 68060, 76424, 77356, 95530, 96695, 136120, 154712, 191060, 193390, 382120, 386780, 773560, 792899, 1585798, 3171596, 3964495, 6343192, 7928990, 15857980, 31715960]

約数ペア:

[(1, 31715960), (2, 15857980), (4, 7928990), (5, 6343192), (8, 3964495), (10, 3171596), (20, 1585798), (40, 792899), (41, 773560), (82, 386780), (83, 382120), (164, 193390), (166, 191060), (205, 154712), (233, 136120), (328, 96695), (332, 95530), (410, 77356), (415, 76424), (466, 68060), (664, 47765), (820, 38678), (830, 38212), (932, 34030), (1165, 27224), (1640, 19339), (1660, 19106), (1864, 17015), (2330, 13612), (3320, 9553), (3403, 9320), (4660, 6806)]