639695412

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{4003}}^1$

素因数の和:4229

約数の個数: 72

約数和(自身を含む): 1696478784

約数和(自身を除く): 1056783372

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 193, 207, 276, 386, 414, 579, 772, 828, 1158, 1737, 2316, 3474, 4003, 4439, 6948, 8006, 8878, 12009, 13317, 16012, 17756, 24018, 26634, 36027, 39951, 48036, 53268, 72054, 79902, 92069, 144108, 159804, 184138, 276207, 368276, 552414, 772579, 828621, 1104828, 1545158, 1657242, 2317737, 3090316, 3314484, 4635474, 6953211, 9270948, 13906422, 17769317, 27812844, 35538634, 53307951, 71077268, 106615902, 159923853, 213231804, 319847706, 639695412]

約数ペア:

[(1, 639695412), (2, 319847706), (3, 213231804), (4, 159923853), (6, 106615902), (9, 71077268), (12, 53307951), (18, 35538634), (23, 27812844), (36, 17769317), (46, 13906422), (69, 9270948), (92, 6953211), (138, 4635474), (193, 3314484), (207, 3090316), (276, 2317737), (386, 1657242), (414, 1545158), (579, 1104828), (772, 828621), (828, 772579), (1158, 552414), (1737, 368276), (2316, 276207), (3474, 184138), (4003, 159804), (4439, 144108), (6948, 92069), (8006, 79902), (8878, 72054), (12009, 53268), (13317, 48036), (16012, 39951), (17756, 36027), (24018, 26634)]