1520781375

素因数分解:

$3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{461}}^1\times {\mathrm{463}}^1$

素因数の和:961

約数の個数: 64

約数和(自身を含む): 2675312640

約数和(自身を除く): 1154531265

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 125, 285, 375, 461, 463, 475, 1383, 1389, 1425, 2305, 2315, 2375, 6915, 6945, 7125, 8759, 8797, 11525, 11575, 26277, 26391, 34575, 34725, 43795, 43985, 57625, 57875, 131385, 131955, 172875, 173625, 213443, 218975, 219925, 640329, 656925, 659775, 1067215, 1094875, 1099625, 3201645, 3284625, 3298875, 4055417, 5336075, 12166251, 16008225, 20277085, 26680375, 60831255, 80041125, 101385425, 304156275, 506927125, 1520781375]

約数ペア:

[(1, 1520781375), (3, 506927125), (5, 304156275), (15, 101385425), (19, 80041125), (25, 60831255), (57, 26680375), (75, 20277085), (95, 16008225), (125, 12166251), (285, 5336075), (375, 4055417), (461, 3298875), (463, 3284625), (475, 3201645), (1383, 1099625), (1389, 1094875), (1425, 1067215), (2305, 659775), (2315, 656925), (2375, 640329), (6915, 219925), (6945, 218975), (7125, 213443), (8759, 173625), (8797, 172875), (11525, 131955), (11575, 131385), (26277, 57875), (26391, 57625), (34575, 43985), (34725, 43795)]