20530804980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{1949}}^1\times {\mathrm{3583}}^1$

素因数の和:5558

約数の個数: 144

約数和(自身を含む): 66924748800

約数和(自身を除く): 46393943820

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 1949, 2940, 3583, 3898, 5847, 7166, 7796, 9745, 10749, 11694, 13643, 14332, 17915, 19490, 21498, 23388, 25081, 27286, 29235, 35830, 38980, 40929, 42996, 50162, 53745, 54572, 58470, 68215, 71660, 75243, 81858, 95501, 100324, 107490, 116940, 125405, 136430, 150486, 163716, 175567, 191002, 204645, 214980, 250810, 272860, 286503, 300972, 351134, 376215, 382004, 409290, 477505, 501620, 526701, 573006, 702268, 752430, 818580, 877835, 955010, 1053402, 1146012, 1432515, 1504860, 1755670, 1910020, 2106804, 2633505, 2865030, 3511340, 5267010, 5730060, 6983267, 10534020, 13966534, 20949801, 27933068, 34916335, 41899602, 48882869, 69832670, 83799204, 97765738, 104749005, 139665340, 146648607, 195531476, 209498010, 244414345, 293297214, 342180083, 418996020, 488828690, 586594428, 684360166, 733243035, 977657380, 1026540249, 1368720332, 1466486070, 1710900415, 2053080498, 2932972140, 3421800830, 4106160996, 5132701245, 6843601660, 10265402490, 20530804980]

約数ペア:

[(1, 20530804980), (2, 10265402490), (3, 6843601660), (4, 5132701245), (5, 4106160996), (6, 3421800830), (7, 2932972140), (10, 2053080498), (12, 1710900415), (14, 1466486070), (15, 1368720332), (20, 1026540249), (21, 977657380), (28, 733243035), (30, 684360166), (35, 586594428), (42, 488828690), (49, 418996020), (60, 342180083), (70, 293297214), (84, 244414345), (98, 209498010), (105, 195531476), (140, 146648607), (147, 139665340), (196, 104749005), (210, 97765738), (245, 83799204), (294, 69832670), (420, 48882869), (490, 41899602), (588, 34916335), (735, 27933068), (980, 20949801), (1470, 13966534), (1949, 10534020), (2940, 6983267), (3583, 5730060), (3898, 5267010), (5847, 3511340), (7166, 2865030), (7796, 2633505), (9745, 2106804), (10749, 1910020), (11694, 1755670), (13643, 1504860), (14332, 1432515), (17915, 1146012), (19490, 1053402), (21498, 955010), (23388, 877835), (25081, 818580), (27286, 752430), (29235, 702268), (35830, 573006), (38980, 526701), (40929, 501620), (42996, 477505), (50162, 409290), (53745, 382004), (54572, 376215), (58470, 351134), (68215, 300972), (71660, 286503), (75243, 272860), (81858, 250810), (95501, 214980), (100324, 204645), (107490, 191002), (116940, 175567), (125405, 163716), (136430, 150486)]