28697340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{227}}^1$

素因数の和:296

約数の個数: 144

約数和(自身を含む): 96066432

約数和(自身を除く): 67369092

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 49, 60, 70, 84, 86, 98, 105, 129, 140, 147, 172, 196, 210, 215, 227, 245, 258, 294, 301, 420, 430, 454, 490, 516, 588, 602, 645, 681, 735, 860, 903, 908, 980, 1135, 1204, 1290, 1362, 1470, 1505, 1589, 1806, 2107, 2270, 2580, 2724, 2940, 3010, 3178, 3405, 3612, 4214, 4515, 4540, 4767, 6020, 6321, 6356, 6810, 7945, 8428, 9030, 9534, 9761, 10535, 11123, 12642, 13620, 15890, 18060, 19068, 19522, 21070, 22246, 23835, 25284, 29283, 31605, 31780, 33369, 39044, 42140, 44492, 47670, 48805, 55615, 58566, 63210, 66738, 68327, 95340, 97610, 111230, 117132, 126420, 133476, 136654, 146415, 166845, 195220, 204981, 222460, 273308, 292830, 333690, 341635, 409962, 478289, 585660, 667380, 683270, 819924, 956578, 1024905, 1366540, 1434867, 1913156, 2049810, 2391445, 2869734, 4099620, 4782890, 5739468, 7174335, 9565780, 14348670, 28697340]

約数ペア:

[(1, 28697340), (2, 14348670), (3, 9565780), (4, 7174335), (5, 5739468), (6, 4782890), (7, 4099620), (10, 2869734), (12, 2391445), (14, 2049810), (15, 1913156), (20, 1434867), (21, 1366540), (28, 1024905), (30, 956578), (35, 819924), (42, 683270), (43, 667380), (49, 585660), (60, 478289), (70, 409962), (84, 341635), (86, 333690), (98, 292830), (105, 273308), (129, 222460), (140, 204981), (147, 195220), (172, 166845), (196, 146415), (210, 136654), (215, 133476), (227, 126420), (245, 117132), (258, 111230), (294, 97610), (301, 95340), (420, 68327), (430, 66738), (454, 63210), (490, 58566), (516, 55615), (588, 48805), (602, 47670), (645, 44492), (681, 42140), (735, 39044), (860, 33369), (903, 31780), (908, 31605), (980, 29283), (1135, 25284), (1204, 23835), (1290, 22246), (1362, 21070), (1470, 19522), (1505, 19068), (1589, 18060), (1806, 15890), (2107, 13620), (2270, 12642), (2580, 11123), (2724, 10535), (2940, 9761), (3010, 9534), (3178, 9030), (3405, 8428), (3612, 7945), (4214, 6810), (4515, 6356), (4540, 6321), (4767, 6020)]