280479975

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{1721}}^1$

素因数の和:1828

約数の個数: 48

約数和(自身を含む): 484281504

約数和(自身を除く): 203801529

約数列:

[1, 3, 5, 15, 25, 41, 53, 75, 123, 159, 205, 265, 615, 795, 1025, 1325, 1721, 2173, 3075, 3975, 5163, 6519, 8605, 10865, 25815, 32595, 43025, 54325, 70561, 91213, 129075, 162975, 211683, 273639, 352805, 456065, 1058415, 1368195, 1764025, 2280325, 3739733, 5292075, 6840975, 11219199, 18698665, 56095995, 93493325, 280479975]

約数ペア:

[(1, 280479975), (3, 93493325), (5, 56095995), (15, 18698665), (25, 11219199), (41, 6840975), (53, 5292075), (75, 3739733), (123, 2280325), (159, 1764025), (205, 1368195), (265, 1058415), (615, 456065), (795, 352805), (1025, 273639), (1325, 211683), (1721, 162975), (2173, 129075), (3075, 91213), (3975, 70561), (5163, 54325), (6519, 43025), (8605, 32595), (10865, 25815)]