31304480

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^2\times {\mathrm{677}}^1$

素因数の和:726

約数の個数: 72

約数和(自身を含む): 78679188

約数和(自身を除く): 47374708

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 289, 340, 544, 578, 677, 680, 1156, 1354, 1360, 1445, 2312, 2708, 2720, 2890, 3385, 4624, 5416, 5780, 6770, 9248, 10832, 11509, 11560, 13540, 21664, 23018, 23120, 27080, 46036, 46240, 54160, 57545, 92072, 108320, 115090, 184144, 195653, 230180, 368288, 391306, 460360, 782612, 920720, 978265, 1565224, 1841440, 1956530, 3130448, 3913060, 6260896, 7826120, 15652240, 31304480]

約数ペア:

[(1, 31304480), (2, 15652240), (4, 7826120), (5, 6260896), (8, 3913060), (10, 3130448), (16, 1956530), (17, 1841440), (20, 1565224), (32, 978265), (34, 920720), (40, 782612), (68, 460360), (80, 391306), (85, 368288), (136, 230180), (160, 195653), (170, 184144), (272, 115090), (289, 108320), (340, 92072), (544, 57545), (578, 54160), (677, 46240), (680, 46036), (1156, 27080), (1354, 23120), (1360, 23018), (1445, 21664), (2312, 13540), (2708, 11560), (2720, 11509), (2890, 10832), (3385, 9248), (4624, 6770), (5416, 5780)]