2012921920

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{1021}}^1$

素因数の和:1200

約数の個数: 112

約数和(自身を含む): 4924903536

約数和(自身を除く): 2911981616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 101, 122, 160, 202, 244, 305, 320, 404, 488, 505, 610, 808, 976, 1010, 1021, 1220, 1616, 1952, 2020, 2042, 2440, 3232, 3904, 4040, 4084, 4880, 5105, 6161, 6464, 8080, 8168, 9760, 10210, 12322, 16160, 16336, 19520, 20420, 24644, 30805, 32320, 32672, 40840, 49288, 61610, 62281, 65344, 81680, 98576, 103121, 123220, 124562, 163360, 197152, 206242, 246440, 249124, 311405, 326720, 394304, 412484, 492880, 498248, 515605, 622810, 824968, 985760, 996496, 1031210, 1245620, 1649936, 1971520, 1992992, 2062420, 2491240, 3299872, 3985984, 4124840, 4982480, 6290381, 6599744, 8249680, 9964960, 12580762, 16499360, 19929920, 25161524, 31451905, 32998720, 50323048, 62903810, 100646096, 125807620, 201292192, 251615240, 402584384, 503230480, 1006460960, 2012921920]

約数ペア:

[(1, 2012921920), (2, 1006460960), (4, 503230480), (5, 402584384), (8, 251615240), (10, 201292192), (16, 125807620), (20, 100646096), (32, 62903810), (40, 50323048), (61, 32998720), (64, 31451905), (80, 25161524), (101, 19929920), (122, 16499360), (160, 12580762), (202, 9964960), (244, 8249680), (305, 6599744), (320, 6290381), (404, 4982480), (488, 4124840), (505, 3985984), (610, 3299872), (808, 2491240), (976, 2062420), (1010, 1992992), (1021, 1971520), (1220, 1649936), (1616, 1245620), (1952, 1031210), (2020, 996496), (2042, 985760), (2440, 824968), (3232, 622810), (3904, 515605), (4040, 498248), (4084, 492880), (4880, 412484), (5105, 394304), (6161, 326720), (6464, 311405), (8080, 249124), (8168, 246440), (9760, 206242), (10210, 197152), (12322, 163360), (16160, 124562), (16336, 123220), (19520, 103121), (20420, 98576), (24644, 81680), (30805, 65344), (32320, 62281), (32672, 61610), (40840, 49288)]