637981360

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{3181}}^1$

素因数の和:3326

約数の個数: 80

約数和(自身を含む): 1562489280

約数和(自身を除く): 924507920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 109, 115, 184, 218, 230, 368, 436, 460, 545, 872, 920, 1090, 1744, 1840, 2180, 2507, 3181, 4360, 5014, 6362, 8720, 10028, 12535, 12724, 15905, 20056, 25070, 25448, 31810, 40112, 50140, 50896, 63620, 73163, 100280, 127240, 146326, 200560, 254480, 292652, 346729, 365815, 585304, 693458, 731630, 1170608, 1386916, 1463260, 1733645, 2773832, 2926520, 3467290, 5547664, 5853040, 6934580, 7974767, 13869160, 15949534, 27738320, 31899068, 39873835, 63798136, 79747670, 127596272, 159495340, 318990680, 637981360]

約数ペア:

[(1, 637981360), (2, 318990680), (4, 159495340), (5, 127596272), (8, 79747670), (10, 63798136), (16, 39873835), (20, 31899068), (23, 27738320), (40, 15949534), (46, 13869160), (80, 7974767), (92, 6934580), (109, 5853040), (115, 5547664), (184, 3467290), (218, 2926520), (230, 2773832), (368, 1733645), (436, 1463260), (460, 1386916), (545, 1170608), (872, 731630), (920, 693458), (1090, 585304), (1744, 365815), (1840, 346729), (2180, 292652), (2507, 254480), (3181, 200560), (4360, 146326), (5014, 127240), (6362, 100280), (8720, 73163), (10028, 63620), (12535, 50896), (12724, 50140), (15905, 40112), (20056, 31810), (25070, 25448)]