18895920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1831}}^1$

素因数の和:1890

約数の個数: 80

約数和(自身を含む): 59972352

約数和(自身を除く): 41076432

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 43, 48, 60, 80, 86, 120, 129, 172, 215, 240, 258, 344, 430, 516, 645, 688, 860, 1032, 1290, 1720, 1831, 2064, 2580, 3440, 3662, 5160, 5493, 7324, 9155, 10320, 10986, 14648, 18310, 21972, 27465, 29296, 36620, 43944, 54930, 73240, 78733, 87888, 109860, 146480, 157466, 219720, 236199, 314932, 393665, 439440, 472398, 629864, 787330, 944796, 1180995, 1259728, 1574660, 1889592, 2361990, 3149320, 3779184, 4723980, 6298640, 9447960, 18895920]

約数ペア:

[(1, 18895920), (2, 9447960), (3, 6298640), (4, 4723980), (5, 3779184), (6, 3149320), (8, 2361990), (10, 1889592), (12, 1574660), (15, 1259728), (16, 1180995), (20, 944796), (24, 787330), (30, 629864), (40, 472398), (43, 439440), (48, 393665), (60, 314932), (80, 236199), (86, 219720), (120, 157466), (129, 146480), (172, 109860), (215, 87888), (240, 78733), (258, 73240), (344, 54930), (430, 43944), (516, 36620), (645, 29296), (688, 27465), (860, 21972), (1032, 18310), (1290, 14648), (1720, 10986), (1831, 10320), (2064, 9155), (2580, 7324), (3440, 5493), (3662, 5160)]