18637680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{983}}^1$

素因数の和:1078

約数の個数: 80

約数和(自身を含む): 58567680

約数和(自身を除く): 39930000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 79, 80, 120, 158, 237, 240, 316, 395, 474, 632, 790, 948, 983, 1185, 1264, 1580, 1896, 1966, 2370, 2949, 3160, 3792, 3932, 4740, 4915, 5898, 6320, 7864, 9480, 9830, 11796, 14745, 15728, 18960, 19660, 23592, 29490, 39320, 47184, 58980, 77657, 78640, 117960, 155314, 232971, 235920, 310628, 388285, 465942, 621256, 776570, 931884, 1164855, 1242512, 1553140, 1863768, 2329710, 3106280, 3727536, 4659420, 6212560, 9318840, 18637680]

約数ペア:

[(1, 18637680), (2, 9318840), (3, 6212560), (4, 4659420), (5, 3727536), (6, 3106280), (8, 2329710), (10, 1863768), (12, 1553140), (15, 1242512), (16, 1164855), (20, 931884), (24, 776570), (30, 621256), (40, 465942), (48, 388285), (60, 310628), (79, 235920), (80, 232971), (120, 155314), (158, 117960), (237, 78640), (240, 77657), (316, 58980), (395, 47184), (474, 39320), (632, 29490), (790, 23592), (948, 19660), (983, 18960), (1185, 15728), (1264, 14745), (1580, 11796), (1896, 9830), (1966, 9480), (2370, 7864), (2949, 6320), (3160, 5898), (3792, 4915), (3932, 4740)]