721304844

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{179}}^1\times {\mathrm{1987}}^1$

素因数の和:2199

約数の個数: 72

約数和(自身を含む): 1833572160

約数和(自身を除く): 1112267316

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 169, 179, 338, 358, 507, 537, 676, 716, 1014, 1074, 1987, 2028, 2148, 2327, 3974, 4654, 5961, 6981, 7948, 9308, 11922, 13962, 23844, 25831, 27924, 30251, 51662, 60502, 77493, 90753, 103324, 121004, 154986, 181506, 309972, 335803, 355673, 363012, 671606, 711346, 1007409, 1067019, 1343212, 1422692, 2014818, 2134038, 4029636, 4268076, 4623749, 9247498, 13871247, 18494996, 27742494, 55484988, 60108737, 120217474, 180326211, 240434948, 360652422, 721304844]

約数ペア:

[(1, 721304844), (2, 360652422), (3, 240434948), (4, 180326211), (6, 120217474), (12, 60108737), (13, 55484988), (26, 27742494), (39, 18494996), (52, 13871247), (78, 9247498), (156, 4623749), (169, 4268076), (179, 4029636), (338, 2134038), (358, 2014818), (507, 1422692), (537, 1343212), (676, 1067019), (716, 1007409), (1014, 711346), (1074, 671606), (1987, 363012), (2028, 355673), (2148, 335803), (2327, 309972), (3974, 181506), (4654, 154986), (5961, 121004), (6981, 103324), (7948, 90753), (9308, 77493), (11922, 60502), (13962, 51662), (23844, 30251), (25831, 27924)]