1285260620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{233}}^1$

素因数の和:352

約数の個数: 144

約数和(自身を含む): 3279092544

約数和(自身を除く): 1993831924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 41, 62, 70, 82, 124, 140, 155, 164, 205, 217, 233, 287, 310, 410, 434, 466, 574, 620, 820, 868, 932, 961, 1085, 1148, 1165, 1271, 1435, 1631, 1922, 2170, 2330, 2542, 2870, 3262, 3844, 4340, 4660, 4805, 5084, 5740, 6355, 6524, 6727, 7223, 8155, 8897, 9553, 9610, 12710, 13454, 14446, 16310, 17794, 19106, 19220, 25420, 26908, 28892, 32620, 33635, 35588, 36115, 38212, 39401, 44485, 47765, 50561, 66871, 67270, 72230, 78802, 88970, 95530, 101122, 133742, 134540, 144460, 157604, 177940, 191060, 197005, 202244, 223913, 252805, 267484, 275807, 296143, 334355, 394010, 447826, 505610, 551614, 592286, 668710, 788020, 895652, 1011220, 1103228, 1119565, 1184572, 1337420, 1379035, 1480715, 1567391, 2073001, 2239130, 2758070, 2961430, 3134782, 4146002, 4478260, 5516140, 5922860, 6269564, 7836955, 8292004, 9180433, 10365005, 15673910, 18360866, 20730010, 31347820, 36721732, 41460020, 45902165, 64263031, 91804330, 128526062, 183608660, 257052124, 321315155, 642630310, 1285260620]

約数ペア:

[(1, 1285260620), (2, 642630310), (4, 321315155), (5, 257052124), (7, 183608660), (10, 128526062), (14, 91804330), (20, 64263031), (28, 45902165), (31, 41460020), (35, 36721732), (41, 31347820), (62, 20730010), (70, 18360866), (82, 15673910), (124, 10365005), (140, 9180433), (155, 8292004), (164, 7836955), (205, 6269564), (217, 5922860), (233, 5516140), (287, 4478260), (310, 4146002), (410, 3134782), (434, 2961430), (466, 2758070), (574, 2239130), (620, 2073001), (820, 1567391), (868, 1480715), (932, 1379035), (961, 1337420), (1085, 1184572), (1148, 1119565), (1165, 1103228), (1271, 1011220), (1435, 895652), (1631, 788020), (1922, 668710), (2170, 592286), (2330, 551614), (2542, 505610), (2870, 447826), (3262, 394010), (3844, 334355), (4340, 296143), (4660, 275807), (4805, 267484), (5084, 252805), (5740, 223913), (6355, 202244), (6524, 197005), (6727, 191060), (7223, 177940), (8155, 157604), (8897, 144460), (9553, 134540), (9610, 133742), (12710, 101122), (13454, 95530), (14446, 88970), (16310, 78802), (17794, 72230), (19106, 67270), (19220, 66871), (25420, 50561), (26908, 47765), (28892, 44485), (32620, 39401), (33635, 38212), (35588, 36115)]