18858390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{181}}^1$

素因数の和:365

約数の個数: 64

約数和(自身を含む): 47803392

約数和(自身を除く): 28945002

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 151, 181, 230, 302, 345, 362, 453, 543, 690, 755, 905, 906, 1086, 1510, 1810, 2265, 2715, 3473, 4163, 4530, 5430, 6946, 8326, 10419, 12489, 17365, 20815, 20838, 24978, 27331, 34730, 41630, 52095, 54662, 62445, 81993, 104190, 124890, 136655, 163986, 273310, 409965, 628613, 819930, 1257226, 1885839, 3143065, 3771678, 6286130, 9429195, 18858390]

約数ペア:

[(1, 18858390), (2, 9429195), (3, 6286130), (5, 3771678), (6, 3143065), (10, 1885839), (15, 1257226), (23, 819930), (30, 628613), (46, 409965), (69, 273310), (115, 163986), (138, 136655), (151, 124890), (181, 104190), (230, 81993), (302, 62445), (345, 54662), (362, 52095), (453, 41630), (543, 34730), (690, 27331), (755, 24978), (905, 20838), (906, 20815), (1086, 17365), (1510, 12489), (1810, 10419), (2265, 8326), (2715, 6946), (3473, 5430), (4163, 4530)]