18671900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{271}}^1$

素因数の和:351

約数の個数: 72

約数和(自身を含む): 44622144

約数和(自身を除く): 25950244

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 53, 65, 100, 106, 130, 212, 260, 265, 271, 325, 530, 542, 650, 689, 1060, 1084, 1300, 1325, 1355, 1378, 2650, 2710, 2756, 3445, 3523, 5300, 5420, 6775, 6890, 7046, 13550, 13780, 14092, 14363, 17225, 17615, 27100, 28726, 34450, 35230, 57452, 68900, 70460, 71815, 88075, 143630, 176150, 186719, 287260, 352300, 359075, 373438, 718150, 746876, 933595, 1436300, 1867190, 3734380, 4667975, 9335950, 18671900]

約数ペア:

[(1, 18671900), (2, 9335950), (4, 4667975), (5, 3734380), (10, 1867190), (13, 1436300), (20, 933595), (25, 746876), (26, 718150), (50, 373438), (52, 359075), (53, 352300), (65, 287260), (100, 186719), (106, 176150), (130, 143630), (212, 88075), (260, 71815), (265, 70460), (271, 68900), (325, 57452), (530, 35230), (542, 34450), (650, 28726), (689, 27100), (1060, 17615), (1084, 17225), (1300, 14363), (1325, 14092), (1355, 13780), (1378, 13550), (2650, 7046), (2710, 6890), (2756, 6775), (3445, 5420), (3523, 5300)]