81635428

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:205

約数の個数: 96

約数和(自身を含む): 182891520

約数和(自身を除く): 101256092

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 41, 47, 68, 82, 89, 94, 119, 164, 178, 188, 238, 287, 329, 356, 476, 574, 623, 658, 697, 799, 1148, 1246, 1316, 1394, 1513, 1598, 1927, 2492, 2788, 3026, 3196, 3649, 3854, 4183, 4879, 5593, 6052, 7298, 7708, 8366, 9758, 10591, 11186, 13489, 14596, 16732, 19516, 21182, 22372, 25543, 26978, 29281, 32759, 42364, 51086, 53956, 58562, 62033, 65518, 71111, 102172, 117124, 124066, 131036, 142222, 171503, 229313, 248132, 284444, 343006, 434231, 458626, 497777, 686012, 868462, 917252, 995554, 1200521, 1736924, 1991108, 2401042, 2915551, 4802084, 5831102, 11662204, 20408857, 40817714, 81635428]

約数ペア:

[(1, 81635428), (2, 40817714), (4, 20408857), (7, 11662204), (14, 5831102), (17, 4802084), (28, 2915551), (34, 2401042), (41, 1991108), (47, 1736924), (68, 1200521), (82, 995554), (89, 917252), (94, 868462), (119, 686012), (164, 497777), (178, 458626), (188, 434231), (238, 343006), (287, 284444), (329, 248132), (356, 229313), (476, 171503), (574, 142222), (623, 131036), (658, 124066), (697, 117124), (799, 102172), (1148, 71111), (1246, 65518), (1316, 62033), (1394, 58562), (1513, 53956), (1598, 51086), (1927, 42364), (2492, 32759), (2788, 29281), (3026, 26978), (3196, 25543), (3649, 22372), (3854, 21182), (4183, 19516), (4879, 16732), (5593, 14596), (6052, 13489), (7298, 11186), (7708, 10591), (8366, 9758)]