18908230

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:229

約数の個数: 64

約数和(自身を含む): 39916800

約数和(自身を除く): 21008570

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 83, 95, 109, 110, 166, 190, 209, 218, 415, 418, 545, 830, 913, 1045, 1090, 1199, 1577, 1826, 2071, 2090, 2398, 3154, 4142, 4565, 5995, 7885, 9047, 9130, 10355, 11990, 15770, 17347, 18094, 20710, 22781, 34694, 45235, 45562, 86735, 90470, 99517, 113905, 171893, 173470, 199034, 227810, 343786, 497585, 859465, 995170, 1718930, 1890823, 3781646, 9454115, 18908230]

約数ペア:

[(1, 18908230), (2, 9454115), (5, 3781646), (10, 1890823), (11, 1718930), (19, 995170), (22, 859465), (38, 497585), (55, 343786), (83, 227810), (95, 199034), (109, 173470), (110, 171893), (166, 113905), (190, 99517), (209, 90470), (218, 86735), (415, 45562), (418, 45235), (545, 34694), (830, 22781), (913, 20710), (1045, 18094), (1090, 17347), (1199, 15770), (1577, 11990), (1826, 10355), (2071, 9130), (2090, 9047), (2398, 7885), (3154, 5995), (4142, 4565)]