31912380

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{19699}}^1$

素因数の和:19720

約数の個数: 60

約数和(自身を含む): 100115400

約数和(自身を除く): 68203020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 19699, 39398, 59097, 78796, 98495, 118194, 177291, 196990, 236388, 295485, 354582, 393980, 531873, 590970, 709164, 886455, 1063746, 1181940, 1595619, 1772910, 2127492, 2659365, 3191238, 3545820, 5318730, 6382476, 7978095, 10637460, 15956190, 31912380]

約数ペア:

[(1, 31912380), (2, 15956190), (3, 10637460), (4, 7978095), (5, 6382476), (6, 5318730), (9, 3545820), (10, 3191238), (12, 2659365), (15, 2127492), (18, 1772910), (20, 1595619), (27, 1181940), (30, 1063746), (36, 886455), (45, 709164), (54, 590970), (60, 531873), (81, 393980), (90, 354582), (108, 295485), (135, 236388), (162, 196990), (180, 177291), (270, 118194), (324, 98495), (405, 78796), (540, 59097), (810, 39398), (1620, 19699)]