491513495240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{643}}^1\times {\mathrm{16661}}^1$

素因数の和:17383

約数の個数: 128

約数和(自身を含む): 1174327096320

約数和(自身を除く): 682813601080

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 62, 74, 124, 148, 155, 185, 248, 296, 310, 370, 620, 643, 740, 1147, 1240, 1286, 1480, 2294, 2572, 3215, 4588, 5144, 5735, 6430, 9176, 11470, 12860, 16661, 19933, 22940, 23791, 25720, 33322, 39866, 45880, 47582, 66644, 79732, 83305, 95164, 99665, 118955, 133288, 159464, 166610, 190328, 199330, 237910, 333220, 398660, 475820, 516491, 616457, 666440, 737521, 797320, 951640, 1032982, 1232914, 1475042, 2065964, 2465828, 2582455, 2950084, 3082285, 3687605, 4131928, 4931656, 5164910, 5900168, 6164570, 7375210, 10329820, 10713023, 12329140, 14750420, 19110167, 20659640, 21426046, 24658280, 29500840, 38220334, 42852092, 53565115, 76440668, 85704184, 95550835, 107130230, 152881336, 191101670, 214260460, 332103713, 382203340, 396381851, 428520920, 664207426, 764406680, 792763702, 1328414852, 1585527404, 1660518565, 1981909255, 2656829704, 3171054808, 3321037130, 3963818510, 6642074260, 7927637020, 12287837381, 13284148520, 15855274040, 24575674762, 49151349524, 61439186905, 98302699048, 122878373810, 245756747620, 491513495240]

約数ペア:

[(1, 491513495240), (2, 245756747620), (4, 122878373810), (5, 98302699048), (8, 61439186905), (10, 49151349524), (20, 24575674762), (31, 15855274040), (37, 13284148520), (40, 12287837381), (62, 7927637020), (74, 6642074260), (124, 3963818510), (148, 3321037130), (155, 3171054808), (185, 2656829704), (248, 1981909255), (296, 1660518565), (310, 1585527404), (370, 1328414852), (620, 792763702), (643, 764406680), (740, 664207426), (1147, 428520920), (1240, 396381851), (1286, 382203340), (1480, 332103713), (2294, 214260460), (2572, 191101670), (3215, 152881336), (4588, 107130230), (5144, 95550835), (5735, 85704184), (6430, 76440668), (9176, 53565115), (11470, 42852092), (12860, 38220334), (16661, 29500840), (19933, 24658280), (22940, 21426046), (23791, 20659640), (25720, 19110167), (33322, 14750420), (39866, 12329140), (45880, 10713023), (47582, 10329820), (66644, 7375210), (79732, 6164570), (83305, 5900168), (95164, 5164910), (99665, 4931656), (118955, 4131928), (133288, 3687605), (159464, 3082285), (166610, 2950084), (190328, 2582455), (199330, 2465828), (237910, 2065964), (333220, 1475042), (398660, 1232914), (475820, 1032982), (516491, 951640), (616457, 797320), (666440, 737521)]