201242020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:222

約数の個数: 144

約数和(自身を含む): 520838640

約数和(自身を除く): 319596620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 73, 97, 98, 116, 140, 145, 146, 194, 196, 203, 245, 290, 292, 365, 388, 406, 485, 490, 511, 580, 679, 730, 812, 970, 980, 1015, 1022, 1358, 1421, 1460, 1940, 2030, 2044, 2117, 2555, 2716, 2813, 2842, 3395, 3577, 4060, 4234, 4753, 5110, 5626, 5684, 6790, 7081, 7105, 7154, 8468, 9506, 10220, 10585, 11252, 13580, 14065, 14162, 14210, 14308, 14819, 17885, 19012, 19691, 21170, 23765, 28130, 28324, 28420, 29638, 35405, 35770, 39382, 42340, 47530, 49567, 56260, 59276, 70810, 71540, 74095, 78764, 95060, 98455, 99134, 103733, 137837, 141620, 148190, 196910, 198268, 205349, 207466, 247835, 275674, 296380, 346969, 393820, 410698, 414932, 495670, 518665, 551348, 689185, 693938, 821396, 991340, 1026745, 1037330, 1378370, 1387876, 1437443, 1734845, 2053490, 2074660, 2756740, 2874886, 3469690, 4106980, 5749772, 6939380, 7187215, 10062101, 14374430, 20124202, 28748860, 40248404, 50310505, 100621010, 201242020]

約数ペア:

[(1, 201242020), (2, 100621010), (4, 50310505), (5, 40248404), (7, 28748860), (10, 20124202), (14, 14374430), (20, 10062101), (28, 7187215), (29, 6939380), (35, 5749772), (49, 4106980), (58, 3469690), (70, 2874886), (73, 2756740), (97, 2074660), (98, 2053490), (116, 1734845), (140, 1437443), (145, 1387876), (146, 1378370), (194, 1037330), (196, 1026745), (203, 991340), (245, 821396), (290, 693938), (292, 689185), (365, 551348), (388, 518665), (406, 495670), (485, 414932), (490, 410698), (511, 393820), (580, 346969), (679, 296380), (730, 275674), (812, 247835), (970, 207466), (980, 205349), (1015, 198268), (1022, 196910), (1358, 148190), (1421, 141620), (1460, 137837), (1940, 103733), (2030, 99134), (2044, 98455), (2117, 95060), (2555, 78764), (2716, 74095), (2813, 71540), (2842, 70810), (3395, 59276), (3577, 56260), (4060, 49567), (4234, 47530), (4753, 42340), (5110, 39382), (5626, 35770), (5684, 35405), (6790, 29638), (7081, 28420), (7105, 28324), (7154, 28130), (8468, 23765), (9506, 21170), (10220, 19691), (10585, 19012), (11252, 17885), (13580, 14819), (14065, 14308), (14162, 14210)]