221399712

素因数分解:

$2^5\times 3^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{263}}^1$

素因数の和:395

約数の個数: 144

約数和(自身を含む): 657296640

約数和(自身を除く): 435896928

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 37, 48, 72, 74, 79, 96, 111, 144, 148, 158, 222, 237, 263, 288, 296, 316, 333, 444, 474, 526, 592, 632, 666, 711, 789, 888, 948, 1052, 1184, 1264, 1332, 1422, 1578, 1776, 1896, 2104, 2367, 2528, 2664, 2844, 2923, 3156, 3552, 3792, 4208, 4734, 5328, 5688, 5846, 6312, 7584, 8416, 8769, 9468, 9731, 10656, 11376, 11692, 12624, 17538, 18936, 19462, 20777, 22752, 23384, 25248, 26307, 29193, 35076, 37872, 38924, 41554, 46768, 52614, 58386, 62331, 70152, 75744, 77848, 83108, 87579, 93536, 105228, 116772, 124662, 140304, 155696, 166216, 175158, 186993, 210456, 233544, 249324, 280608, 311392, 332432, 350316, 373986, 420912, 467088, 498648, 664864, 700632, 747972, 768749, 841824, 934176, 997296, 1401264, 1495944, 1537498, 1994592, 2306247, 2802528, 2991888, 3074996, 4612494, 5983776, 6149992, 6918741, 9224988, 12299984, 13837482, 18449976, 24599968, 27674964, 36899952, 55349928, 73799904, 110699856, 221399712]

約数ペア:

[(1, 221399712), (2, 110699856), (3, 73799904), (4, 55349928), (6, 36899952), (8, 27674964), (9, 24599968), (12, 18449976), (16, 13837482), (18, 12299984), (24, 9224988), (32, 6918741), (36, 6149992), (37, 5983776), (48, 4612494), (72, 3074996), (74, 2991888), (79, 2802528), (96, 2306247), (111, 1994592), (144, 1537498), (148, 1495944), (158, 1401264), (222, 997296), (237, 934176), (263, 841824), (288, 768749), (296, 747972), (316, 700632), (333, 664864), (444, 498648), (474, 467088), (526, 420912), (592, 373986), (632, 350316), (666, 332432), (711, 311392), (789, 280608), (888, 249324), (948, 233544), (1052, 210456), (1184, 186993), (1264, 175158), (1332, 166216), (1422, 155696), (1578, 140304), (1776, 124662), (1896, 116772), (2104, 105228), (2367, 93536), (2528, 87579), (2664, 83108), (2844, 77848), (2923, 75744), (3156, 70152), (3552, 62331), (3792, 58386), (4208, 52614), (4734, 46768), (5328, 41554), (5688, 38924), (5846, 37872), (6312, 35076), (7584, 29193), (8416, 26307), (8769, 25248), (9468, 23384), (9731, 22752), (10656, 20777), (11376, 19462), (11692, 18936), (12624, 17538)]