28925820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2087}}^1$

素因数の和:2120

約数の個数: 144

約数和(自身を含む): 109444608

約数和(自身を除く): 80518788

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 28, 30, 33, 35, 36, 42, 44, 45, 55, 60, 63, 66, 70, 77, 84, 90, 99, 105, 110, 126, 132, 140, 154, 165, 180, 198, 210, 220, 231, 252, 308, 315, 330, 385, 396, 420, 462, 495, 630, 660, 693, 770, 924, 990, 1155, 1260, 1386, 1540, 1980, 2087, 2310, 2772, 3465, 4174, 4620, 6261, 6930, 8348, 10435, 12522, 13860, 14609, 18783, 20870, 22957, 25044, 29218, 31305, 37566, 41740, 43827, 45914, 58436, 62610, 68871, 73045, 75132, 87654, 91828, 93915, 114785, 125220, 131481, 137742, 146090, 160699, 175308, 187830, 206613, 219135, 229570, 262962, 275484, 292180, 321398, 344355, 375660, 413226, 438270, 459140, 482097, 525924, 642796, 657405, 688710, 803495, 826452, 876540, 964194, 1033065, 1314810, 1377420, 1446291, 1606990, 1928388, 2066130, 2410485, 2629620, 2892582, 3213980, 4132260, 4820970, 5785164, 7231455, 9641940, 14462910, 28925820]

約数ペア:

[(1, 28925820), (2, 14462910), (3, 9641940), (4, 7231455), (5, 5785164), (6, 4820970), (7, 4132260), (9, 3213980), (10, 2892582), (11, 2629620), (12, 2410485), (14, 2066130), (15, 1928388), (18, 1606990), (20, 1446291), (21, 1377420), (22, 1314810), (28, 1033065), (30, 964194), (33, 876540), (35, 826452), (36, 803495), (42, 688710), (44, 657405), (45, 642796), (55, 525924), (60, 482097), (63, 459140), (66, 438270), (70, 413226), (77, 375660), (84, 344355), (90, 321398), (99, 292180), (105, 275484), (110, 262962), (126, 229570), (132, 219135), (140, 206613), (154, 187830), (165, 175308), (180, 160699), (198, 146090), (210, 137742), (220, 131481), (231, 125220), (252, 114785), (308, 93915), (315, 91828), (330, 87654), (385, 75132), (396, 73045), (420, 68871), (462, 62610), (495, 58436), (630, 45914), (660, 43827), (693, 41740), (770, 37566), (924, 31305), (990, 29218), (1155, 25044), (1260, 22957), (1386, 20870), (1540, 18783), (1980, 14609), (2087, 13860), (2310, 12522), (2772, 10435), (3465, 8348), (4174, 6930), (4620, 6261)]