28105250

素因数分解:

$2^1\times 5^3\times {\mathrm{17}}^2\times {\mathrm{389}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 56033640

約数和(自身を除く): 27928390

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 125, 170, 250, 289, 389, 425, 578, 778, 850, 1445, 1945, 2125, 2890, 3890, 4250, 6613, 7225, 9725, 13226, 14450, 19450, 33065, 36125, 48625, 66130, 72250, 97250, 112421, 165325, 224842, 330650, 562105, 826625, 1124210, 1653250, 2810525, 5621050, 14052625, 28105250]

約数ペア:

[(1, 28105250), (2, 14052625), (5, 5621050), (10, 2810525), (17, 1653250), (25, 1124210), (34, 826625), (50, 562105), (85, 330650), (125, 224842), (170, 165325), (250, 112421), (289, 97250), (389, 72250), (425, 66130), (578, 48625), (778, 36125), (850, 33065), (1445, 19450), (1945, 14450), (2125, 13226), (2890, 9725), (3890, 7225), (4250, 6613)]