123800375

素因数分解:

$5^3\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:221

約数の個数: 48

約数和(自身を含む): 172411200

約数和(自身を除く): 48610825

約数列:

[1, 5, 17, 23, 25, 85, 115, 125, 149, 289, 391, 425, 575, 745, 1445, 1955, 2125, 2533, 2875, 3427, 3725, 6647, 7225, 9775, 12665, 17135, 18625, 33235, 36125, 43061, 48875, 58259, 63325, 85675, 166175, 215305, 291295, 316625, 428375, 830875, 990403, 1076525, 1456475, 4952015, 5382625, 7282375, 24760075, 123800375]

約数ペア:

[(1, 123800375), (5, 24760075), (17, 7282375), (23, 5382625), (25, 4952015), (85, 1456475), (115, 1076525), (125, 990403), (149, 830875), (289, 428375), (391, 316625), (425, 291295), (575, 215305), (745, 166175), (1445, 85675), (1955, 63325), (2125, 58259), (2533, 48875), (2875, 43061), (3427, 36125), (3725, 33235), (6647, 18625), (7225, 17135), (9775, 12665)]