72604980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1987}}^1$

素因数の和:2038

約数の個数: 144

約数和(自身を含む): 260507520

約数和(自身を除く): 187902540

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 29, 30, 35, 36, 42, 45, 58, 60, 63, 70, 84, 87, 90, 105, 116, 126, 140, 145, 174, 180, 203, 210, 252, 261, 290, 315, 348, 406, 420, 435, 522, 580, 609, 630, 812, 870, 1015, 1044, 1218, 1260, 1305, 1740, 1827, 1987, 2030, 2436, 2610, 3045, 3654, 3974, 4060, 5220, 5961, 6090, 7308, 7948, 9135, 9935, 11922, 12180, 13909, 17883, 18270, 19870, 23844, 27818, 29805, 35766, 36540, 39740, 41727, 55636, 57623, 59610, 69545, 71532, 83454, 89415, 115246, 119220, 125181, 139090, 166908, 172869, 178830, 208635, 230492, 250362, 278180, 288115, 345738, 357660, 403361, 417270, 500724, 518607, 576230, 625905, 691476, 806722, 834540, 864345, 1037214, 1152460, 1210083, 1251810, 1613444, 1728690, 2016805, 2074428, 2420166, 2503620, 2593035, 3457380, 3630249, 4033610, 4840332, 5186070, 6050415, 7260498, 8067220, 10372140, 12100830, 14520996, 18151245, 24201660, 36302490, 72604980]

約数ペア:

[(1, 72604980), (2, 36302490), (3, 24201660), (4, 18151245), (5, 14520996), (6, 12100830), (7, 10372140), (9, 8067220), (10, 7260498), (12, 6050415), (14, 5186070), (15, 4840332), (18, 4033610), (20, 3630249), (21, 3457380), (28, 2593035), (29, 2503620), (30, 2420166), (35, 2074428), (36, 2016805), (42, 1728690), (45, 1613444), (58, 1251810), (60, 1210083), (63, 1152460), (70, 1037214), (84, 864345), (87, 834540), (90, 806722), (105, 691476), (116, 625905), (126, 576230), (140, 518607), (145, 500724), (174, 417270), (180, 403361), (203, 357660), (210, 345738), (252, 288115), (261, 278180), (290, 250362), (315, 230492), (348, 208635), (406, 178830), (420, 172869), (435, 166908), (522, 139090), (580, 125181), (609, 119220), (630, 115246), (812, 89415), (870, 83454), (1015, 71532), (1044, 69545), (1218, 59610), (1260, 57623), (1305, 55636), (1740, 41727), (1827, 39740), (1987, 36540), (2030, 35766), (2436, 29805), (2610, 27818), (3045, 23844), (3654, 19870), (3974, 18270), (4060, 17883), (5220, 13909), (5961, 12180), (6090, 11922), (7308, 9935), (7948, 9135)]