18278790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{449}}^1$

素因数の和:541

約数の個数: 64

約数和(自身を含む): 46656000

約数和(自身を除く): 28377210

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 59, 69, 115, 118, 138, 177, 230, 295, 345, 354, 449, 590, 690, 885, 898, 1347, 1357, 1770, 2245, 2694, 2714, 4071, 4490, 6735, 6785, 8142, 10327, 13470, 13570, 20355, 20654, 26491, 30981, 40710, 51635, 52982, 61962, 79473, 103270, 132455, 154905, 158946, 264910, 309810, 397365, 609293, 794730, 1218586, 1827879, 3046465, 3655758, 6092930, 9139395, 18278790]

約数ペア:

[(1, 18278790), (2, 9139395), (3, 6092930), (5, 3655758), (6, 3046465), (10, 1827879), (15, 1218586), (23, 794730), (30, 609293), (46, 397365), (59, 309810), (69, 264910), (115, 158946), (118, 154905), (138, 132455), (177, 103270), (230, 79473), (295, 61962), (345, 52982), (354, 51635), (449, 40710), (590, 30981), (690, 26491), (885, 20654), (898, 20355), (1347, 13570), (1357, 13470), (1770, 10327), (2245, 8142), (2694, 6785), (2714, 6735), (4071, 4490)]