278402004

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{1847}}^1$

素因数の和:1989

約数の個数: 72

約数和(自身を含む): 726485760

約数和(自身を除く): 448083756

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 79, 106, 158, 159, 212, 237, 316, 318, 474, 477, 636, 711, 948, 954, 1422, 1847, 1908, 2844, 3694, 4187, 5541, 7388, 8374, 11082, 12561, 16623, 16748, 22164, 25122, 33246, 37683, 50244, 66492, 75366, 97891, 145913, 150732, 195782, 291826, 293673, 391564, 437739, 583652, 587346, 875478, 881019, 1174692, 1313217, 1750956, 1762038, 2626434, 3524076, 5252868, 7733389, 15466778, 23200167, 30933556, 46400334, 69600501, 92800668, 139201002, 278402004]

約数ペア:

[(1, 278402004), (2, 139201002), (3, 92800668), (4, 69600501), (6, 46400334), (9, 30933556), (12, 23200167), (18, 15466778), (36, 7733389), (53, 5252868), (79, 3524076), (106, 2626434), (158, 1762038), (159, 1750956), (212, 1313217), (237, 1174692), (316, 881019), (318, 875478), (474, 587346), (477, 583652), (636, 437739), (711, 391564), (948, 293673), (954, 291826), (1422, 195782), (1847, 150732), (1908, 145913), (2844, 97891), (3694, 75366), (4187, 66492), (5541, 50244), (7388, 37683), (8374, 33246), (11082, 25122), (12561, 22164), (16623, 16748)]