20163842804

素因数分解:

$2^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{271}}^1$

素因数の和:574

約数の個数: 144

約数和(自身を含む): 43320904704

約数和(自身を除く): 23157061900

約数列:

[1, 2, 4, 7, 14, 28, 41, 47, 49, 82, 94, 98, 164, 188, 196, 197, 271, 287, 329, 394, 542, 574, 658, 788, 1084, 1148, 1316, 1379, 1897, 1927, 2009, 2303, 2758, 3794, 3854, 4018, 4606, 5516, 7588, 7708, 8036, 8077, 9212, 9259, 9653, 11111, 12737, 13279, 13489, 16154, 18518, 19306, 22222, 25474, 26558, 26978, 32308, 37036, 38612, 44444, 50948, 53116, 53387, 53956, 56539, 64813, 77777, 89159, 94423, 106774, 113078, 129626, 155554, 178318, 188846, 213548, 226156, 259252, 311108, 356636, 373709, 377692, 379619, 395773, 453691, 522217, 544439, 624113, 747418, 759238, 791546, 907382, 1044434, 1088878, 1248226, 1494836, 1518476, 1583092, 1814764, 2088868, 2177756, 2188867, 2496452, 2509189, 2615963, 2657333, 3655519, 4377734, 5018378, 5231926, 5314666, 7311038, 8755468, 10036756, 10463852, 10629332, 14622076, 15322069, 17564323, 18601331, 25588633, 30644138, 35128646, 37202662, 51177266, 61288276, 70257292, 74405324, 102354532, 102876749, 107254483, 122950261, 205753498, 214508966, 245900522, 411506996, 429017932, 491801044, 720137243, 1440274486, 2880548972, 5040960701, 10081921402, 20163842804]

約数ペア:

[(1, 20163842804), (2, 10081921402), (4, 5040960701), (7, 2880548972), (14, 1440274486), (28, 720137243), (41, 491801044), (47, 429017932), (49, 411506996), (82, 245900522), (94, 214508966), (98, 205753498), (164, 122950261), (188, 107254483), (196, 102876749), (197, 102354532), (271, 74405324), (287, 70257292), (329, 61288276), (394, 51177266), (542, 37202662), (574, 35128646), (658, 30644138), (788, 25588633), (1084, 18601331), (1148, 17564323), (1316, 15322069), (1379, 14622076), (1897, 10629332), (1927, 10463852), (2009, 10036756), (2303, 8755468), (2758, 7311038), (3794, 5314666), (3854, 5231926), (4018, 5018378), (4606, 4377734), (5516, 3655519), (7588, 2657333), (7708, 2615963), (8036, 2509189), (8077, 2496452), (9212, 2188867), (9259, 2177756), (9653, 2088868), (11111, 1814764), (12737, 1583092), (13279, 1518476), (13489, 1494836), (16154, 1248226), (18518, 1088878), (19306, 1044434), (22222, 907382), (25474, 791546), (26558, 759238), (26978, 747418), (32308, 624113), (37036, 544439), (38612, 522217), (44444, 453691), (50948, 395773), (53116, 379619), (53387, 377692), (53956, 373709), (56539, 356636), (64813, 311108), (77777, 259252), (89159, 226156), (94423, 213548), (106774, 188846), (113078, 178318), (129626, 155554)]