51872015

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 74945088

約数和(自身を除く): 23073073

約数列:

[1, 5, 13, 17, 23, 65, 85, 115, 157, 169, 221, 299, 391, 785, 845, 1105, 1495, 1955, 2041, 2669, 2873, 3611, 3887, 5083, 10205, 13345, 14365, 18055, 19435, 25415, 26533, 34697, 46943, 61387, 66079, 132665, 173485, 234715, 306935, 330395, 451061, 610259, 798031, 2255305, 3051295, 3990155, 10374403, 51872015]

約数ペア:

[(1, 51872015), (5, 10374403), (13, 3990155), (17, 3051295), (23, 2255305), (65, 798031), (85, 610259), (115, 451061), (157, 330395), (169, 306935), (221, 234715), (299, 173485), (391, 132665), (785, 66079), (845, 61387), (1105, 46943), (1495, 34697), (1955, 26533), (2041, 25415), (2669, 19435), (2873, 18055), (3611, 14365), (3887, 13345), (5083, 10205)]