20591160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:201

約数の個数: 128

約数和(自身を含む): 65620800

約数和(自身を除く): 45029640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 60, 61, 87, 97, 116, 120, 122, 145, 174, 183, 194, 232, 244, 290, 291, 305, 348, 366, 388, 435, 485, 488, 580, 582, 610, 696, 732, 776, 870, 915, 970, 1160, 1164, 1220, 1455, 1464, 1740, 1769, 1830, 1940, 2328, 2440, 2813, 2910, 3480, 3538, 3660, 3880, 5307, 5626, 5820, 5917, 7076, 7320, 8439, 8845, 10614, 11252, 11640, 11834, 14065, 14152, 16878, 17690, 17751, 21228, 22504, 23668, 26535, 28130, 29585, 33756, 35380, 35502, 42195, 42456, 47336, 53070, 56260, 59170, 67512, 70760, 71004, 84390, 88755, 106140, 112520, 118340, 142008, 168780, 171593, 177510, 212280, 236680, 337560, 343186, 355020, 514779, 686372, 710040, 857965, 1029558, 1372744, 1715930, 2059116, 2573895, 3431860, 4118232, 5147790, 6863720, 10295580, 20591160]

約数ペア:

[(1, 20591160), (2, 10295580), (3, 6863720), (4, 5147790), (5, 4118232), (6, 3431860), (8, 2573895), (10, 2059116), (12, 1715930), (15, 1372744), (20, 1029558), (24, 857965), (29, 710040), (30, 686372), (40, 514779), (58, 355020), (60, 343186), (61, 337560), (87, 236680), (97, 212280), (116, 177510), (120, 171593), (122, 168780), (145, 142008), (174, 118340), (183, 112520), (194, 106140), (232, 88755), (244, 84390), (290, 71004), (291, 70760), (305, 67512), (348, 59170), (366, 56260), (388, 53070), (435, 47336), (485, 42456), (488, 42195), (580, 35502), (582, 35380), (610, 33756), (696, 29585), (732, 28130), (776, 26535), (870, 23668), (915, 22504), (970, 21228), (1160, 17751), (1164, 17690), (1220, 16878), (1455, 14152), (1464, 14065), (1740, 11834), (1769, 11640), (1830, 11252), (1940, 10614), (2328, 8845), (2440, 8439), (2813, 7320), (2910, 7076), (3480, 5917), (3538, 5820), (3660, 5626), (3880, 5307)]