20631492

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:206

約数の個数: 144

約数和(自身を含む): 65228800

約数和(自身を除く): 44597308

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 28, 31, 36, 38, 42, 57, 62, 63, 76, 84, 93, 114, 124, 126, 133, 139, 171, 186, 217, 228, 252, 266, 278, 279, 342, 372, 399, 417, 434, 532, 556, 558, 589, 651, 684, 798, 834, 868, 973, 1116, 1178, 1197, 1251, 1302, 1596, 1668, 1767, 1946, 1953, 2356, 2394, 2502, 2604, 2641, 2919, 3534, 3892, 3906, 4123, 4309, 4788, 5004, 5282, 5301, 5838, 7068, 7812, 7923, 8246, 8618, 8757, 10564, 10602, 11676, 12369, 12927, 15846, 16492, 17236, 17514, 18487, 21204, 23769, 24738, 25854, 30163, 31692, 35028, 36974, 37107, 38781, 47538, 49476, 51708, 55461, 60326, 73948, 74214, 77562, 81871, 90489, 95076, 110922, 120652, 148428, 155124, 163742, 166383, 180978, 221844, 245613, 271467, 327484, 332766, 361956, 491226, 542934, 573097, 665532, 736839, 982452, 1085868, 1146194, 1473678, 1719291, 2292388, 2947356, 3438582, 5157873, 6877164, 10315746, 20631492]

約数ペア:

[(1, 20631492), (2, 10315746), (3, 6877164), (4, 5157873), (6, 3438582), (7, 2947356), (9, 2292388), (12, 1719291), (14, 1473678), (18, 1146194), (19, 1085868), (21, 982452), (28, 736839), (31, 665532), (36, 573097), (38, 542934), (42, 491226), (57, 361956), (62, 332766), (63, 327484), (76, 271467), (84, 245613), (93, 221844), (114, 180978), (124, 166383), (126, 163742), (133, 155124), (139, 148428), (171, 120652), (186, 110922), (217, 95076), (228, 90489), (252, 81871), (266, 77562), (278, 74214), (279, 73948), (342, 60326), (372, 55461), (399, 51708), (417, 49476), (434, 47538), (532, 38781), (556, 37107), (558, 36974), (589, 35028), (651, 31692), (684, 30163), (798, 25854), (834, 24738), (868, 23769), (973, 21204), (1116, 18487), (1178, 17514), (1197, 17236), (1251, 16492), (1302, 15846), (1596, 12927), (1668, 12369), (1767, 11676), (1946, 10602), (1953, 10564), (2356, 8757), (2394, 8618), (2502, 8246), (2604, 7923), (2641, 7812), (2919, 7068), (3534, 5838), (3892, 5301), (3906, 5282), (4123, 5004), (4309, 4788)]