20183940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:298

約数の個数: 144

約数和(自身を含む): 71180928

約数和(自身を除く): 50996988

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 83, 84, 90, 105, 126, 140, 166, 180, 193, 210, 249, 252, 315, 332, 386, 415, 420, 498, 579, 581, 630, 747, 772, 830, 965, 996, 1158, 1162, 1245, 1260, 1351, 1494, 1660, 1737, 1743, 1930, 2316, 2324, 2490, 2702, 2895, 2905, 2988, 3474, 3486, 3735, 3860, 4053, 4980, 5229, 5404, 5790, 5810, 6755, 6948, 6972, 7470, 8106, 8685, 8715, 10458, 11580, 11620, 12159, 13510, 14940, 16019, 16212, 17370, 17430, 20265, 20916, 24318, 26145, 27020, 32038, 34740, 34860, 40530, 48057, 48636, 52290, 60795, 64076, 80095, 81060, 96114, 104580, 112133, 121590, 144171, 160190, 192228, 224266, 240285, 243180, 288342, 320380, 336399, 448532, 480570, 560665, 576684, 672798, 720855, 961140, 1009197, 1121330, 1345596, 1441710, 1681995, 2018394, 2242660, 2883420, 3363990, 4036788, 5045985, 6727980, 10091970, 20183940]

約数ペア:

[(1, 20183940), (2, 10091970), (3, 6727980), (4, 5045985), (5, 4036788), (6, 3363990), (7, 2883420), (9, 2242660), (10, 2018394), (12, 1681995), (14, 1441710), (15, 1345596), (18, 1121330), (20, 1009197), (21, 961140), (28, 720855), (30, 672798), (35, 576684), (36, 560665), (42, 480570), (45, 448532), (60, 336399), (63, 320380), (70, 288342), (83, 243180), (84, 240285), (90, 224266), (105, 192228), (126, 160190), (140, 144171), (166, 121590), (180, 112133), (193, 104580), (210, 96114), (249, 81060), (252, 80095), (315, 64076), (332, 60795), (386, 52290), (415, 48636), (420, 48057), (498, 40530), (579, 34860), (581, 34740), (630, 32038), (747, 27020), (772, 26145), (830, 24318), (965, 20916), (996, 20265), (1158, 17430), (1162, 17370), (1245, 16212), (1260, 16019), (1351, 14940), (1494, 13510), (1660, 12159), (1737, 11620), (1743, 11580), (1930, 10458), (2316, 8715), (2324, 8685), (2490, 8106), (2702, 7470), (2895, 6972), (2905, 6948), (2988, 6755), (3474, 5810), (3486, 5790), (3735, 5404), (3860, 5229), (4053, 4980)]