72981960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1487}}^1$

素因数の和:1910

約数の個数: 64

約数和(自身を含む): 219628800

約数和(自身を除く): 146646840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 409, 818, 1227, 1487, 1636, 2045, 2454, 2974, 3272, 4090, 4461, 4908, 5948, 6135, 7435, 8180, 8922, 9816, 11896, 12270, 14870, 16360, 17844, 22305, 24540, 29740, 35688, 44610, 49080, 59480, 89220, 178440, 608183, 1216366, 1824549, 2432732, 3040915, 3649098, 4865464, 6081830, 7298196, 9122745, 12163660, 14596392, 18245490, 24327320, 36490980, 72981960]

約数ペア:

[(1, 72981960), (2, 36490980), (3, 24327320), (4, 18245490), (5, 14596392), (6, 12163660), (8, 9122745), (10, 7298196), (12, 6081830), (15, 4865464), (20, 3649098), (24, 3040915), (30, 2432732), (40, 1824549), (60, 1216366), (120, 608183), (409, 178440), (818, 89220), (1227, 59480), (1487, 49080), (1636, 44610), (2045, 35688), (2454, 29740), (2974, 24540), (3272, 22305), (4090, 17844), (4461, 16360), (4908, 14870), (5948, 12270), (6135, 11896), (7435, 9816), (8180, 8922)]