639396090

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{308887}}^1$

素因数の和:308923

約数の個数: 48

約数和(自身を含む): 1734715008

約数和(自身を除く): 1095318918

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 207, 230, 345, 414, 690, 1035, 2070, 308887, 617774, 926661, 1544435, 1853322, 2779983, 3088870, 4633305, 5559966, 7104401, 9266610, 13899915, 14208802, 21313203, 27799830, 35522005, 42626406, 63939609, 71044010, 106566015, 127879218, 213132030, 319698045, 639396090]

約数ペア:

[(1, 639396090), (2, 319698045), (3, 213132030), (5, 127879218), (6, 106566015), (9, 71044010), (10, 63939609), (15, 42626406), (18, 35522005), (23, 27799830), (30, 21313203), (45, 14208802), (46, 13899915), (69, 9266610), (90, 7104401), (115, 5559966), (138, 4633305), (207, 3088870), (230, 2779983), (345, 1853322), (414, 1544435), (690, 926661), (1035, 617774), (2070, 308887)]