391738208

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:420

約数の個数: 96

約数和(自身を含む): 862202880

約数和(自身を除く): 470464672

約数列:

[1, 2, 4, 8, 16, 17, 23, 32, 34, 46, 68, 92, 131, 136, 184, 239, 262, 272, 368, 391, 478, 524, 544, 736, 782, 956, 1048, 1564, 1912, 2096, 2227, 3013, 3128, 3824, 4063, 4192, 4454, 5497, 6026, 6256, 7648, 8126, 8908, 10994, 12052, 12512, 16252, 17816, 21988, 24104, 31309, 32504, 35632, 43976, 48208, 51221, 62618, 65008, 71264, 87952, 93449, 96416, 102442, 125236, 130016, 175904, 186898, 204884, 250472, 373796, 409768, 500944, 532253, 720107, 747592, 819536, 1001888, 1064506, 1440214, 1495184, 1639072, 2129012, 2880428, 2990368, 4258024, 5760856, 8516048, 11521712, 12241819, 17032096, 23043424, 24483638, 48967276, 97934552, 195869104, 391738208]

約数ペア:

[(1, 391738208), (2, 195869104), (4, 97934552), (8, 48967276), (16, 24483638), (17, 23043424), (23, 17032096), (32, 12241819), (34, 11521712), (46, 8516048), (68, 5760856), (92, 4258024), (131, 2990368), (136, 2880428), (184, 2129012), (239, 1639072), (262, 1495184), (272, 1440214), (368, 1064506), (391, 1001888), (478, 819536), (524, 747592), (544, 720107), (736, 532253), (782, 500944), (956, 409768), (1048, 373796), (1564, 250472), (1912, 204884), (2096, 186898), (2227, 175904), (3013, 130016), (3128, 125236), (3824, 102442), (4063, 96416), (4192, 93449), (4454, 87952), (5497, 71264), (6026, 65008), (6256, 62618), (7648, 51221), (8126, 48208), (8908, 43976), (10994, 35632), (12052, 32504), (12512, 31309), (16252, 24104), (17816, 21988)]