128568390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1\times {\mathrm{479}}^1$

素因数の和:901

約数の個数: 64

約数和(自身を含む): 323481600

約数和(自身を除く): 194913210

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 389, 479, 690, 778, 958, 1167, 1437, 1945, 2334, 2395, 2874, 3890, 4790, 5835, 7185, 8947, 11017, 11670, 14370, 17894, 22034, 26841, 33051, 44735, 53682, 55085, 66102, 89470, 110170, 134205, 165255, 186331, 268410, 330510, 372662, 558993, 931655, 1117986, 1863310, 2794965, 4285613, 5589930, 8571226, 12856839, 21428065, 25713678, 42856130, 64284195, 128568390]

約数ペア:

[(1, 128568390), (2, 64284195), (3, 42856130), (5, 25713678), (6, 21428065), (10, 12856839), (15, 8571226), (23, 5589930), (30, 4285613), (46, 2794965), (69, 1863310), (115, 1117986), (138, 931655), (230, 558993), (345, 372662), (389, 330510), (479, 268410), (690, 186331), (778, 165255), (958, 134205), (1167, 110170), (1437, 89470), (1945, 66102), (2334, 55085), (2395, 53682), (2874, 44735), (3890, 33051), (4790, 26841), (5835, 22034), (7185, 17894), (8947, 14370), (11017, 11670)]