201780840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{2521}}^1$

素因数の和:2587

約数の個数: 128

約数和(自身を含む): 653702400

約数和(自身を除く): 451921560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 29, 30, 40, 46, 58, 60, 69, 87, 92, 115, 116, 120, 138, 145, 174, 184, 230, 232, 276, 290, 345, 348, 435, 460, 552, 580, 667, 690, 696, 870, 920, 1160, 1334, 1380, 1740, 2001, 2521, 2668, 2760, 3335, 3480, 4002, 5042, 5336, 6670, 7563, 8004, 10005, 10084, 12605, 13340, 15126, 16008, 20010, 20168, 25210, 26680, 30252, 37815, 40020, 50420, 57983, 60504, 73109, 75630, 80040, 100840, 115966, 146218, 151260, 173949, 219327, 231932, 289915, 292436, 302520, 347898, 365545, 438654, 463864, 579830, 584872, 695796, 731090, 869745, 877308, 1096635, 1159660, 1391592, 1462180, 1681507, 1739490, 1754616, 2193270, 2319320, 2924360, 3363014, 3478980, 4386540, 5044521, 6726028, 6957960, 8407535, 8773080, 10089042, 13452056, 16815070, 20178084, 25222605, 33630140, 40356168, 50445210, 67260280, 100890420, 201780840]

約数ペア:

[(1, 201780840), (2, 100890420), (3, 67260280), (4, 50445210), (5, 40356168), (6, 33630140), (8, 25222605), (10, 20178084), (12, 16815070), (15, 13452056), (20, 10089042), (23, 8773080), (24, 8407535), (29, 6957960), (30, 6726028), (40, 5044521), (46, 4386540), (58, 3478980), (60, 3363014), (69, 2924360), (87, 2319320), (92, 2193270), (115, 1754616), (116, 1739490), (120, 1681507), (138, 1462180), (145, 1391592), (174, 1159660), (184, 1096635), (230, 877308), (232, 869745), (276, 731090), (290, 695796), (345, 584872), (348, 579830), (435, 463864), (460, 438654), (552, 365545), (580, 347898), (667, 302520), (690, 292436), (696, 289915), (870, 231932), (920, 219327), (1160, 173949), (1334, 151260), (1380, 146218), (1740, 115966), (2001, 100840), (2521, 80040), (2668, 75630), (2760, 73109), (3335, 60504), (3480, 57983), (4002, 50420), (5042, 40020), (5336, 37815), (6670, 30252), (7563, 26680), (8004, 25210), (10005, 20168), (10084, 20010), (12605, 16008), (13340, 15126)]