31018130

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:339

約数の個数: 64

約数和(自身を含む): 66528000

約数和(自身を除く): 35509870

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 109, 110, 130, 143, 199, 218, 286, 398, 545, 715, 995, 1090, 1199, 1417, 1430, 1990, 2189, 2398, 2587, 2834, 4378, 5174, 5995, 7085, 10945, 11990, 12935, 14170, 15587, 21691, 21890, 25870, 28457, 31174, 43382, 56914, 77935, 108455, 142285, 155870, 216910, 238601, 281983, 284570, 477202, 563966, 1193005, 1409915, 2386010, 2819830, 3101813, 6203626, 15509065, 31018130]

約数ペア:

[(1, 31018130), (2, 15509065), (5, 6203626), (10, 3101813), (11, 2819830), (13, 2386010), (22, 1409915), (26, 1193005), (55, 563966), (65, 477202), (109, 284570), (110, 281983), (130, 238601), (143, 216910), (199, 155870), (218, 142285), (286, 108455), (398, 77935), (545, 56914), (715, 43382), (995, 31174), (1090, 28457), (1199, 25870), (1417, 21890), (1430, 21691), (1990, 15587), (2189, 14170), (2398, 12935), (2587, 11990), (2834, 10945), (4378, 7085), (5174, 5995)]