207928564

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:217

約数の個数: 72

約数和(自身を含む): 408481920

約数和(自身を除く): 200553356

約数列:

[1, 2, 4, 17, 34, 43, 47, 68, 86, 89, 94, 172, 178, 188, 289, 356, 578, 731, 799, 1156, 1462, 1513, 1598, 2021, 2924, 3026, 3196, 3827, 4042, 4183, 6052, 7654, 8084, 8366, 12427, 13583, 15308, 16732, 24854, 25721, 27166, 34357, 49708, 51442, 54332, 65059, 68714, 71111, 102884, 130118, 137428, 142222, 179869, 260236, 284444, 359738, 584069, 719476, 1106003, 1168138, 1208887, 2212006, 2336276, 2417774, 3057773, 4424012, 4835548, 6115546, 12231092, 51982141, 103964282, 207928564]

約数ペア:

[(1, 207928564), (2, 103964282), (4, 51982141), (17, 12231092), (34, 6115546), (43, 4835548), (47, 4424012), (68, 3057773), (86, 2417774), (89, 2336276), (94, 2212006), (172, 1208887), (178, 1168138), (188, 1106003), (289, 719476), (356, 584069), (578, 359738), (731, 284444), (799, 260236), (1156, 179869), (1462, 142222), (1513, 137428), (1598, 130118), (2021, 102884), (2924, 71111), (3026, 68714), (3196, 65059), (3827, 54332), (4042, 51442), (4183, 49708), (6052, 34357), (7654, 27166), (8084, 25721), (8366, 24854), (12427, 16732), (13583, 15308)]