28237920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{661}}^1$

素因数の和:768

約数の個数: 96

約数和(自身を含む): 90084960

約数和(自身を除く): 61847040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 89, 96, 120, 160, 178, 240, 267, 356, 445, 480, 534, 661, 712, 890, 1068, 1322, 1335, 1424, 1780, 1983, 2136, 2644, 2670, 2848, 3305, 3560, 3966, 4272, 5288, 5340, 6610, 7120, 7932, 8544, 9915, 10576, 10680, 13220, 14240, 15864, 19830, 21152, 21360, 26440, 31728, 39660, 42720, 52880, 58829, 63456, 79320, 105760, 117658, 158640, 176487, 235316, 294145, 317280, 352974, 470632, 588290, 705948, 882435, 941264, 1176580, 1411896, 1764870, 1882528, 2353160, 2823792, 3529740, 4706320, 5647584, 7059480, 9412640, 14118960, 28237920]

約数ペア:

[(1, 28237920), (2, 14118960), (3, 9412640), (4, 7059480), (5, 5647584), (6, 4706320), (8, 3529740), (10, 2823792), (12, 2353160), (15, 1882528), (16, 1764870), (20, 1411896), (24, 1176580), (30, 941264), (32, 882435), (40, 705948), (48, 588290), (60, 470632), (80, 352974), (89, 317280), (96, 294145), (120, 235316), (160, 176487), (178, 158640), (240, 117658), (267, 105760), (356, 79320), (445, 63456), (480, 58829), (534, 52880), (661, 42720), (712, 39660), (890, 31728), (1068, 26440), (1322, 21360), (1335, 21152), (1424, 19830), (1780, 15864), (1983, 14240), (2136, 13220), (2644, 10680), (2670, 10576), (2848, 9915), (3305, 8544), (3560, 7932), (3966, 7120), (4272, 6610), (5288, 5340)]