388850640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{20509}}^1$

素因数の和:20604

約数の個数: 80

約数和(自身を含む): 1220755200

約数和(自身を除く): 831904560

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, 1185, 1264, 1580, 1896, 2370, 3160, 3792, 4740, 6320, 9480, 18960, 20509, 41018, 61527, 82036, 102545, 123054, 164072, 205090, 246108, 307635, 328144, 410180, 492216, 615270, 820360, 984432, 1230540, 1620211, 1640720, 2461080, 3240422, 4860633, 4922160, 6480844, 8101055, 9721266, 12961688, 16202110, 19442532, 24303165, 25923376, 32404220, 38885064, 48606330, 64808440, 77770128, 97212660, 129616880, 194425320, 388850640]

約数ペア:

[(1, 388850640), (2, 194425320), (3, 129616880), (4, 97212660), (5, 77770128), (6, 64808440), (8, 48606330), (10, 38885064), (12, 32404220), (15, 25923376), (16, 24303165), (20, 19442532), (24, 16202110), (30, 12961688), (40, 9721266), (48, 8101055), (60, 6480844), (79, 4922160), (80, 4860633), (120, 3240422), (158, 2461080), (237, 1640720), (240, 1620211), (316, 1230540), (395, 984432), (474, 820360), (632, 615270), (790, 492216), (948, 410180), (1185, 328144), (1264, 307635), (1580, 246108), (1896, 205090), (2370, 164072), (3160, 123054), (3792, 102545), (4740, 82036), (6320, 61527), (9480, 41018), (18960, 20509)]