397431398

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{263}}^1$

素因数の和:346

約数の個数: 96

約数和(自身を含む): 811109376

約数和(自身を除く): 413677978

約数列:

[1, 2, 7, 13, 14, 19, 23, 26, 38, 46, 91, 133, 161, 182, 247, 263, 266, 299, 322, 361, 437, 494, 526, 598, 722, 874, 1729, 1841, 2093, 2527, 3059, 3419, 3458, 3682, 4186, 4693, 4997, 5054, 5681, 6049, 6118, 6838, 8303, 9386, 9994, 11362, 12098, 16606, 23933, 32851, 34979, 39767, 42343, 47866, 58121, 64961, 65702, 69958, 78637, 79534, 84686, 94943, 107939, 114931, 116242, 129922, 157274, 189886, 215878, 229862, 454727, 550459, 664601, 755573, 804517, 909454, 1100918, 1234259, 1329202, 1494103, 1511146, 1609034, 2183689, 2468518, 2988206, 4367378, 8639813, 10458721, 15285823, 17279626, 20917442, 28387957, 30571646, 56775914, 198715699, 397431398]

約数ペア:

[(1, 397431398), (2, 198715699), (7, 56775914), (13, 30571646), (14, 28387957), (19, 20917442), (23, 17279626), (26, 15285823), (38, 10458721), (46, 8639813), (91, 4367378), (133, 2988206), (161, 2468518), (182, 2183689), (247, 1609034), (263, 1511146), (266, 1494103), (299, 1329202), (322, 1234259), (361, 1100918), (437, 909454), (494, 804517), (526, 755573), (598, 664601), (722, 550459), (874, 454727), (1729, 229862), (1841, 215878), (2093, 189886), (2527, 157274), (3059, 129922), (3419, 116242), (3458, 114931), (3682, 107939), (4186, 94943), (4693, 84686), (4997, 79534), (5054, 78637), (5681, 69958), (6049, 65702), (6118, 64961), (6838, 58121), (8303, 47866), (9386, 42343), (9994, 39767), (11362, 34979), (12098, 32851), (16606, 23933)]