865168420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{673}}^1$

素因数の和:917

約数の個数: 96

約数和(自身を含む): 2038176000

約数和(自身を除く): 1173007580

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 199, 323, 340, 380, 398, 646, 673, 796, 995, 1292, 1346, 1615, 1990, 2692, 3230, 3365, 3383, 3781, 3980, 6460, 6730, 6766, 7562, 11441, 12787, 13460, 13532, 15124, 16915, 18905, 22882, 25574, 33830, 37810, 45764, 51148, 57205, 63935, 64277, 67660, 75620, 114410, 127870, 128554, 133927, 217379, 228820, 255740, 257108, 267854, 321385, 434758, 535708, 642770, 669635, 869516, 1086895, 1285540, 1339270, 2173790, 2276759, 2544613, 2678540, 4347580, 4553518, 5089226, 9107036, 10178452, 11383795, 12723065, 22767590, 25446130, 43258421, 45535180, 50892260, 86516842, 173033684, 216292105, 432584210, 865168420]

約数ペア:

[(1, 865168420), (2, 432584210), (4, 216292105), (5, 173033684), (10, 86516842), (17, 50892260), (19, 45535180), (20, 43258421), (34, 25446130), (38, 22767590), (68, 12723065), (76, 11383795), (85, 10178452), (95, 9107036), (170, 5089226), (190, 4553518), (199, 4347580), (323, 2678540), (340, 2544613), (380, 2276759), (398, 2173790), (646, 1339270), (673, 1285540), (796, 1086895), (995, 869516), (1292, 669635), (1346, 642770), (1615, 535708), (1990, 434758), (2692, 321385), (3230, 267854), (3365, 257108), (3383, 255740), (3781, 228820), (3980, 217379), (6460, 133927), (6730, 128554), (6766, 127870), (7562, 114410), (11441, 75620), (12787, 67660), (13460, 64277), (13532, 63935), (15124, 57205), (16915, 51148), (18905, 45764), (22882, 37810), (25574, 33830)]