20071870

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:194

約数の個数: 96

約数和(自身を含む): 47573568

約数和(自身を除く): 27501698

約数列:

[1, 2, 5, 7, 10, 13, 14, 23, 26, 35, 46, 49, 65, 70, 91, 98, 115, 130, 137, 161, 182, 230, 245, 274, 299, 322, 455, 490, 598, 637, 685, 805, 910, 959, 1127, 1274, 1370, 1495, 1610, 1781, 1918, 2093, 2254, 2990, 3151, 3185, 3562, 4186, 4795, 5635, 6302, 6370, 6713, 8905, 9590, 10465, 11270, 12467, 13426, 14651, 15755, 17810, 20930, 22057, 24934, 29302, 31510, 33565, 40963, 44114, 62335, 67130, 73255, 81926, 87269, 110285, 124670, 146510, 154399, 174538, 204815, 220570, 286741, 308798, 409630, 436345, 573482, 771995, 872690, 1433705, 1543990, 2007187, 2867410, 4014374, 10035935, 20071870]

約数ペア:

[(1, 20071870), (2, 10035935), (5, 4014374), (7, 2867410), (10, 2007187), (13, 1543990), (14, 1433705), (23, 872690), (26, 771995), (35, 573482), (46, 436345), (49, 409630), (65, 308798), (70, 286741), (91, 220570), (98, 204815), (115, 174538), (130, 154399), (137, 146510), (161, 124670), (182, 110285), (230, 87269), (245, 81926), (274, 73255), (299, 67130), (322, 62335), (455, 44114), (490, 40963), (598, 33565), (637, 31510), (685, 29302), (805, 24934), (910, 22057), (959, 20930), (1127, 17810), (1274, 15755), (1370, 14651), (1495, 13426), (1610, 12467), (1781, 11270), (1918, 10465), (2093, 9590), (2254, 8905), (2990, 6713), (3151, 6370), (3185, 6302), (3562, 5635), (4186, 4795)]