819141520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:273

約数の個数: 160

約数和(自身を含む): 2062725120

約数和(自身を除く): 1243583600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 37, 40, 62, 74, 79, 80, 113, 124, 148, 155, 158, 185, 226, 248, 296, 310, 316, 370, 395, 452, 496, 565, 592, 620, 632, 740, 790, 904, 1130, 1147, 1240, 1264, 1480, 1580, 1808, 2260, 2294, 2449, 2480, 2923, 2960, 3160, 3503, 4181, 4520, 4588, 4898, 5735, 5846, 6320, 7006, 8362, 8927, 9040, 9176, 9796, 11470, 11692, 12245, 14012, 14615, 16724, 17515, 17854, 18352, 19592, 20905, 22940, 23384, 24490, 28024, 29230, 33448, 35030, 35708, 39184, 41810, 44635, 45880, 46768, 48980, 56048, 58460, 66896, 70060, 71416, 83620, 89270, 90613, 91760, 97960, 116920, 129611, 140120, 142832, 167240, 178540, 181226, 195920, 233840, 259222, 276737, 280240, 330299, 334480, 357080, 362452, 453065, 518444, 553474, 648055, 660598, 714160, 724904, 906130, 1036888, 1106948, 1296110, 1321196, 1383685, 1449808, 1651495, 1812260, 2073776, 2213896, 2592220, 2642392, 2767370, 3302990, 3624520, 4427792, 5184440, 5284784, 5534740, 6605980, 7249040, 10239269, 10368880, 11069480, 13211960, 20478538, 22138960, 26423920, 40957076, 51196345, 81914152, 102392690, 163828304, 204785380, 409570760, 819141520]

約数ペア:

[(1, 819141520), (2, 409570760), (4, 204785380), (5, 163828304), (8, 102392690), (10, 81914152), (16, 51196345), (20, 40957076), (31, 26423920), (37, 22138960), (40, 20478538), (62, 13211960), (74, 11069480), (79, 10368880), (80, 10239269), (113, 7249040), (124, 6605980), (148, 5534740), (155, 5284784), (158, 5184440), (185, 4427792), (226, 3624520), (248, 3302990), (296, 2767370), (310, 2642392), (316, 2592220), (370, 2213896), (395, 2073776), (452, 1812260), (496, 1651495), (565, 1449808), (592, 1383685), (620, 1321196), (632, 1296110), (740, 1106948), (790, 1036888), (904, 906130), (1130, 724904), (1147, 714160), (1240, 660598), (1264, 648055), (1480, 553474), (1580, 518444), (1808, 453065), (2260, 362452), (2294, 357080), (2449, 334480), (2480, 330299), (2923, 280240), (2960, 276737), (3160, 259222), (3503, 233840), (4181, 195920), (4520, 181226), (4588, 178540), (4898, 167240), (5735, 142832), (5846, 140120), (6320, 129611), (7006, 116920), (8362, 97960), (8927, 91760), (9040, 90613), (9176, 89270), (9796, 83620), (11470, 71416), (11692, 70060), (12245, 66896), (14012, 58460), (14615, 56048), (16724, 48980), (17515, 46768), (17854, 45880), (18352, 44635), (19592, 41810), (20905, 39184), (22940, 35708), (23384, 35030), (24490, 33448), (28024, 29230)]