638780904

素因数分解:

$2^3\times 3^5\times {\mathrm{328591}}^1$

素因数の和:328612

約数の個数: 48

約数和(自身を含む): 1794112320

約数和(自身を除く): 1155331416

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 243, 324, 486, 648, 972, 1944, 328591, 657182, 985773, 1314364, 1971546, 2628728, 2957319, 3943092, 5914638, 7886184, 8871957, 11829276, 17743914, 23658552, 26615871, 35487828, 53231742, 70975656, 79847613, 106463484, 159695226, 212926968, 319390452, 638780904]

約数ペア:

[(1, 638780904), (2, 319390452), (3, 212926968), (4, 159695226), (6, 106463484), (8, 79847613), (9, 70975656), (12, 53231742), (18, 35487828), (24, 26615871), (27, 23658552), (36, 17743914), (54, 11829276), (72, 8871957), (81, 7886184), (108, 5914638), (162, 3943092), (216, 2957319), (243, 2628728), (324, 1971546), (486, 1314364), (648, 985773), (972, 657182), (1944, 328591)]