18748875

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^2\times {\mathrm{173}}^1$

素因数の和:225

約数の個数: 48

約数和(自身を含む): 33332832

約数和(自身を除く): 14583957

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 173, 255, 289, 375, 425, 519, 865, 867, 1275, 1445, 2125, 2595, 2941, 4325, 4335, 6375, 7225, 8823, 12975, 14705, 21625, 21675, 36125, 44115, 49997, 64875, 73525, 108375, 149991, 220575, 249985, 367625, 749955, 1102875, 1249925, 3749775, 6249625, 18748875]

約数ペア:

[(1, 18748875), (3, 6249625), (5, 3749775), (15, 1249925), (17, 1102875), (25, 749955), (51, 367625), (75, 249985), (85, 220575), (125, 149991), (173, 108375), (255, 73525), (289, 64875), (375, 49997), (425, 44115), (519, 36125), (865, 21675), (867, 21625), (1275, 14705), (1445, 12975), (2125, 8823), (2595, 7225), (2941, 6375), (4325, 4335)]