690951625

素因数分解:

$5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:216

約数の個数: 128

約数和(自身を含む): 1174118400

約数和(自身を除く): 483166775

約数列:

[1, 5, 7, 13, 19, 23, 25, 35, 65, 91, 95, 115, 125, 133, 139, 161, 175, 247, 299, 325, 437, 455, 475, 575, 665, 695, 805, 875, 973, 1235, 1495, 1625, 1729, 1807, 2093, 2185, 2275, 2375, 2641, 2875, 3059, 3197, 3325, 3475, 4025, 4865, 5681, 6175, 7475, 8645, 9035, 10465, 10925, 11375, 12649, 13205, 15295, 15985, 16625, 17375, 18487, 20125, 22379, 24325, 28405, 30875, 34333, 37375, 39767, 41561, 43225, 45175, 52325, 54625, 60743, 63245, 66025, 76475, 79925, 92435, 111895, 121625, 142025, 171665, 198835, 207805, 216125, 225875, 240331, 261625, 290927, 303715, 316225, 330125, 382375, 399625, 425201, 462175, 559475, 710125, 789659, 858325, 994175, 1039025, 1201655, 1454635, 1518575, 1581125, 2126005, 2310875, 2797375, 3948295, 4291625, 4970875, 5195125, 5527613, 6008275, 7273175, 7592875, 10630025, 19741475, 27638065, 30041375, 36365875, 53150125, 98707375, 138190325, 690951625]

約数ペア:

[(1, 690951625), (5, 138190325), (7, 98707375), (13, 53150125), (19, 36365875), (23, 30041375), (25, 27638065), (35, 19741475), (65, 10630025), (91, 7592875), (95, 7273175), (115, 6008275), (125, 5527613), (133, 5195125), (139, 4970875), (161, 4291625), (175, 3948295), (247, 2797375), (299, 2310875), (325, 2126005), (437, 1581125), (455, 1518575), (475, 1454635), (575, 1201655), (665, 1039025), (695, 994175), (805, 858325), (875, 789659), (973, 710125), (1235, 559475), (1495, 462175), (1625, 425201), (1729, 399625), (1807, 382375), (2093, 330125), (2185, 316225), (2275, 303715), (2375, 290927), (2641, 261625), (2875, 240331), (3059, 225875), (3197, 216125), (3325, 207805), (3475, 198835), (4025, 171665), (4865, 142025), (5681, 121625), (6175, 111895), (7475, 92435), (8645, 79925), (9035, 76475), (10465, 66025), (10925, 63245), (11375, 60743), (12649, 54625), (13205, 52325), (15295, 45175), (15985, 43225), (16625, 41561), (17375, 39767), (18487, 37375), (20125, 34333), (22379, 30875), (24325, 28405)]