18990960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1493}}^1$

素因数の和:1562

約数の個数: 80

約数和(自身を含む): 60022944

約数和(自身を除く): 41031984

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 53, 60, 80, 106, 120, 159, 212, 240, 265, 318, 424, 530, 636, 795, 848, 1060, 1272, 1493, 1590, 2120, 2544, 2986, 3180, 4240, 4479, 5972, 6360, 7465, 8958, 11944, 12720, 14930, 17916, 22395, 23888, 29860, 35832, 44790, 59720, 71664, 79129, 89580, 119440, 158258, 179160, 237387, 316516, 358320, 395645, 474774, 633032, 791290, 949548, 1186935, 1266064, 1582580, 1899096, 2373870, 3165160, 3798192, 4747740, 6330320, 9495480, 18990960]

約数ペア:

[(1, 18990960), (2, 9495480), (3, 6330320), (4, 4747740), (5, 3798192), (6, 3165160), (8, 2373870), (10, 1899096), (12, 1582580), (15, 1266064), (16, 1186935), (20, 949548), (24, 791290), (30, 633032), (40, 474774), (48, 395645), (53, 358320), (60, 316516), (80, 237387), (106, 179160), (120, 158258), (159, 119440), (212, 89580), (240, 79129), (265, 71664), (318, 59720), (424, 44790), (530, 35832), (636, 29860), (795, 23888), (848, 22395), (1060, 17916), (1272, 14930), (1493, 12720), (1590, 11944), (2120, 8958), (2544, 7465), (2986, 6360), (3180, 5972), (4240, 4479)]