28172025

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{577}}^1$

素因数の和:631

約数の個数: 72

約数和(自身を含む): 59631104

約数和(自身を除く): 31459079

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 31, 35, 45, 63, 75, 93, 105, 155, 175, 217, 225, 279, 315, 465, 525, 577, 651, 775, 1085, 1395, 1575, 1731, 1953, 2325, 2885, 3255, 4039, 5193, 5425, 6975, 8655, 9765, 12117, 14425, 16275, 17887, 20195, 25965, 36351, 43275, 48825, 53661, 60585, 89435, 100975, 125209, 129825, 160983, 181755, 268305, 302925, 375627, 447175, 626045, 804915, 908775, 1126881, 1341525, 1878135, 3130225, 4024575, 5634405, 9390675, 28172025]

約数ペア:

[(1, 28172025), (3, 9390675), (5, 5634405), (7, 4024575), (9, 3130225), (15, 1878135), (21, 1341525), (25, 1126881), (31, 908775), (35, 804915), (45, 626045), (63, 447175), (75, 375627), (93, 302925), (105, 268305), (155, 181755), (175, 160983), (217, 129825), (225, 125209), (279, 100975), (315, 89435), (465, 60585), (525, 53661), (577, 48825), (651, 43275), (775, 36351), (1085, 25965), (1395, 20195), (1575, 17887), (1731, 16275), (1953, 14425), (2325, 12117), (2885, 9765), (3255, 8655), (4039, 6975), (5193, 5425)]