28878840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{827}}^1$

素因数の和:941

約数の個数: 96

約数和(自身を含む): 94938480

約数和(自身を除く): 66059640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 97, 120, 180, 194, 291, 360, 388, 485, 582, 776, 827, 873, 970, 1164, 1455, 1654, 1746, 1940, 2328, 2481, 2910, 3308, 3492, 3880, 4135, 4365, 4962, 5820, 6616, 6984, 7443, 8270, 8730, 9924, 11640, 12405, 14886, 16540, 17460, 19848, 24810, 29772, 33080, 34920, 37215, 49620, 59544, 74430, 80219, 99240, 148860, 160438, 240657, 297720, 320876, 401095, 481314, 641752, 721971, 802190, 962628, 1203285, 1443942, 1604380, 1925256, 2406570, 2887884, 3208760, 3609855, 4813140, 5775768, 7219710, 9626280, 14439420, 28878840]

約数ペア:

[(1, 28878840), (2, 14439420), (3, 9626280), (4, 7219710), (5, 5775768), (6, 4813140), (8, 3609855), (9, 3208760), (10, 2887884), (12, 2406570), (15, 1925256), (18, 1604380), (20, 1443942), (24, 1203285), (30, 962628), (36, 802190), (40, 721971), (45, 641752), (60, 481314), (72, 401095), (90, 320876), (97, 297720), (120, 240657), (180, 160438), (194, 148860), (291, 99240), (360, 80219), (388, 74430), (485, 59544), (582, 49620), (776, 37215), (827, 34920), (873, 33080), (970, 29772), (1164, 24810), (1455, 19848), (1654, 17460), (1746, 16540), (1940, 14886), (2328, 12405), (2481, 11640), (2910, 9924), (3308, 8730), (3492, 8270), (3880, 7443), (4135, 6984), (4365, 6616), (4962, 5820)]