215289975

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{1321}}^1$

素因数の和:1428

約数の個数: 48

約数和(自身を含む): 371788704

約数和(自身を除く): 156498729

約数列:

[1, 3, 5, 15, 25, 41, 53, 75, 123, 159, 205, 265, 615, 795, 1025, 1321, 1325, 2173, 3075, 3963, 3975, 6519, 6605, 10865, 19815, 32595, 33025, 54161, 54325, 70013, 99075, 162483, 162975, 210039, 270805, 350065, 812415, 1050195, 1354025, 1750325, 2870533, 4062075, 5250975, 8611599, 14352665, 43057995, 71763325, 215289975]

約数ペア:

[(1, 215289975), (3, 71763325), (5, 43057995), (15, 14352665), (25, 8611599), (41, 5250975), (53, 4062075), (75, 2870533), (123, 1750325), (159, 1354025), (205, 1050195), (265, 812415), (615, 350065), (795, 270805), (1025, 210039), (1321, 162975), (1325, 162483), (2173, 99075), (3075, 70013), (3963, 54325), (3975, 54161), (6519, 33025), (6605, 32595), (10865, 19815)]