31780125

素因数分解:

$3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:128

約数の個数: 96

約数和(自身を含む): 64393056

約数和(自身を除く): 32612931

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 41, 45, 53, 65, 75, 117, 123, 125, 159, 195, 205, 225, 265, 325, 369, 375, 477, 533, 585, 615, 689, 795, 975, 1025, 1125, 1325, 1599, 1625, 1845, 2067, 2173, 2385, 2665, 2925, 3075, 3445, 3975, 4797, 4875, 5125, 6201, 6519, 6625, 7995, 9225, 10335, 10865, 11925, 13325, 14625, 15375, 17225, 19557, 19875, 23985, 28249, 31005, 32595, 39975, 46125, 51675, 54325, 59625, 66625, 84747, 86125, 97785, 119925, 141245, 155025, 162975, 199875, 254241, 258375, 271625, 423735, 488925, 599625, 706225, 775125, 814875, 1271205, 2118675, 2444625, 3531125, 6356025, 10593375, 31780125]

約数ペア:

[(1, 31780125), (3, 10593375), (5, 6356025), (9, 3531125), (13, 2444625), (15, 2118675), (25, 1271205), (39, 814875), (41, 775125), (45, 706225), (53, 599625), (65, 488925), (75, 423735), (117, 271625), (123, 258375), (125, 254241), (159, 199875), (195, 162975), (205, 155025), (225, 141245), (265, 119925), (325, 97785), (369, 86125), (375, 84747), (477, 66625), (533, 59625), (585, 54325), (615, 51675), (689, 46125), (795, 39975), (975, 32595), (1025, 31005), (1125, 28249), (1325, 23985), (1599, 19875), (1625, 19557), (1845, 17225), (2067, 15375), (2173, 14625), (2385, 13325), (2665, 11925), (2925, 10865), (3075, 10335), (3445, 9225), (3975, 7995), (4797, 6625), (4875, 6519), (5125, 6201)]