18985728

素因数分解:

$2^8\times 3^1\times {\mathrm{59}}^1\times {\mathrm{419}}^1$

素因数の和:497

約数の個数: 72

約数和(自身を含む): 51508800

約数和(自身を除く): 32523072

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 59, 64, 96, 118, 128, 177, 192, 236, 256, 354, 384, 419, 472, 708, 768, 838, 944, 1257, 1416, 1676, 1888, 2514, 2832, 3352, 3776, 5028, 5664, 6704, 7552, 10056, 11328, 13408, 15104, 20112, 22656, 24721, 26816, 40224, 45312, 49442, 53632, 74163, 80448, 98884, 107264, 148326, 160896, 197768, 296652, 321792, 395536, 593304, 791072, 1186608, 1582144, 2373216, 3164288, 4746432, 6328576, 9492864, 18985728]

約数ペア:

[(1, 18985728), (2, 9492864), (3, 6328576), (4, 4746432), (6, 3164288), (8, 2373216), (12, 1582144), (16, 1186608), (24, 791072), (32, 593304), (48, 395536), (59, 321792), (64, 296652), (96, 197768), (118, 160896), (128, 148326), (177, 107264), (192, 98884), (236, 80448), (256, 74163), (354, 53632), (384, 49442), (419, 45312), (472, 40224), (708, 26816), (768, 24721), (838, 22656), (944, 20112), (1257, 15104), (1416, 13408), (1676, 11328), (1888, 10056), (2514, 7552), (2832, 6704), (3352, 5664), (3776, 5028)]