18918122495

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{347}}^1\times {\mathrm{353}}^1$

素因数の和:824

約数の個数: 64

約数和(自身を含む): 25545093120

約数和(自身を除く): 6626970625

約数列:

[1, 5, 17, 23, 79, 85, 115, 347, 353, 391, 395, 1343, 1735, 1765, 1817, 1955, 5899, 6001, 6715, 7981, 8119, 9085, 27413, 27887, 29495, 30005, 30889, 39905, 40595, 122491, 135677, 137065, 138023, 139435, 154445, 466021, 474079, 612455, 630499, 641401, 678385, 690115, 2082347, 2330105, 2370395, 2817293, 3152495, 3207005, 9676789, 10411735, 10718483, 10903817, 14086465, 47893981, 48383945, 53592415, 54519085, 164505413, 222566147, 239469905, 822527065, 1112830735, 3783624499, 18918122495]

約数ペア:

[(1, 18918122495), (5, 3783624499), (17, 1112830735), (23, 822527065), (79, 239469905), (85, 222566147), (115, 164505413), (347, 54519085), (353, 53592415), (391, 48383945), (395, 47893981), (1343, 14086465), (1735, 10903817), (1765, 10718483), (1817, 10411735), (1955, 9676789), (5899, 3207005), (6001, 3152495), (6715, 2817293), (7981, 2370395), (8119, 2330105), (9085, 2082347), (27413, 690115), (27887, 678385), (29495, 641401), (30005, 630499), (30889, 612455), (39905, 474079), (40595, 466021), (122491, 154445), (135677, 139435), (137065, 138023)]