18861375

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:157

約数の個数: 64

約数和(自身を含む): 34909056

約数和(自身を除く): 16047681

約数列:

[1, 3, 5, 13, 15, 25, 39, 53, 65, 73, 75, 125, 159, 195, 219, 265, 325, 365, 375, 689, 795, 949, 975, 1095, 1325, 1625, 1825, 2067, 2847, 3445, 3869, 3975, 4745, 4875, 5475, 6625, 9125, 10335, 11607, 14235, 17225, 19345, 19875, 23725, 27375, 50297, 51675, 58035, 71175, 86125, 96725, 118625, 150891, 251485, 258375, 290175, 355875, 483625, 754455, 1257425, 1450875, 3772275, 6287125, 18861375]

約数ペア:

[(1, 18861375), (3, 6287125), (5, 3772275), (13, 1450875), (15, 1257425), (25, 754455), (39, 483625), (53, 355875), (65, 290175), (73, 258375), (75, 251485), (125, 150891), (159, 118625), (195, 96725), (219, 86125), (265, 71175), (325, 58035), (365, 51675), (375, 50297), (689, 27375), (795, 23725), (949, 19875), (975, 19345), (1095, 17225), (1325, 14235), (1625, 11607), (1825, 10335), (2067, 9125), (2847, 6625), (3445, 5475), (3869, 4875), (3975, 4745)]