397936

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:62

約数の個数: 80

約数和(自身を含む): 1071360

約数和(自身を除く): 673424

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 17, 19, 22, 28, 34, 38, 44, 56, 68, 76, 77, 88, 112, 119, 133, 136, 152, 154, 176, 187, 209, 238, 266, 272, 304, 308, 323, 374, 418, 476, 532, 616, 646, 748, 836, 952, 1064, 1232, 1292, 1309, 1463, 1496, 1672, 1904, 2128, 2261, 2584, 2618, 2926, 2992, 3344, 3553, 4522, 5168, 5236, 5852, 7106, 9044, 10472, 11704, 14212, 18088, 20944, 23408, 24871, 28424, 36176, 49742, 56848, 99484, 198968, 397936]

約数ペア:

[(1, 397936), (2, 198968), (4, 99484), (7, 56848), (8, 49742), (11, 36176), (14, 28424), (16, 24871), (17, 23408), (19, 20944), (22, 18088), (28, 14212), (34, 11704), (38, 10472), (44, 9044), (56, 7106), (68, 5852), (76, 5236), (77, 5168), (88, 4522), (112, 3553), (119, 3344), (133, 2992), (136, 2926), (152, 2618), (154, 2584), (176, 2261), (187, 2128), (209, 1904), (238, 1672), (266, 1496), (272, 1463), (304, 1309), (308, 1292), (323, 1232), (374, 1064), (418, 952), (476, 836), (532, 748), (616, 646)]