391300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1$

素因数の和:77

約数の個数: 72

約数和(自身を含む): 1069376

約数和(自身を除く): 678076

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 43, 50, 52, 65, 70, 86, 91, 100, 130, 140, 172, 175, 182, 215, 260, 301, 325, 350, 364, 430, 455, 559, 602, 650, 700, 860, 910, 1075, 1118, 1204, 1300, 1505, 1820, 2150, 2236, 2275, 2795, 3010, 3913, 4300, 4550, 5590, 6020, 7525, 7826, 9100, 11180, 13975, 15050, 15652, 19565, 27950, 30100, 39130, 55900, 78260, 97825, 195650, 391300]

約数ペア:

[(1, 391300), (2, 195650), (4, 97825), (5, 78260), (7, 55900), (10, 39130), (13, 30100), (14, 27950), (20, 19565), (25, 15652), (26, 15050), (28, 13975), (35, 11180), (43, 9100), (50, 7826), (52, 7525), (65, 6020), (70, 5590), (86, 4550), (91, 4300), (100, 3913), (130, 3010), (140, 2795), (172, 2275), (175, 2236), (182, 2150), (215, 1820), (260, 1505), (301, 1300), (325, 1204), (350, 1118), (364, 1075), (430, 910), (455, 860), (559, 700), (602, 650)]