28573860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{9719}}^1$

素因数の和:9745

約数の個数: 72

約数和(自身を含む): 93078720

約数和(自身を除く): 64504860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 9719, 19438, 29157, 38876, 48595, 58314, 68033, 97190, 116628, 136066, 145785, 194380, 204099, 272132, 291570, 340165, 408198, 476231, 583140, 680330, 816396, 952462, 1020495, 1360660, 1428693, 1904924, 2040990, 2381155, 2857386, 4081980, 4762310, 5714772, 7143465, 9524620, 14286930, 28573860]

約数ペア:

[(1, 28573860), (2, 14286930), (3, 9524620), (4, 7143465), (5, 5714772), (6, 4762310), (7, 4081980), (10, 2857386), (12, 2381155), (14, 2040990), (15, 1904924), (20, 1428693), (21, 1360660), (28, 1020495), (30, 952462), (35, 816396), (42, 680330), (49, 583140), (60, 476231), (70, 408198), (84, 340165), (98, 291570), (105, 272132), (140, 204099), (147, 194380), (196, 145785), (210, 136066), (245, 116628), (294, 97190), (420, 68033), (490, 58314), (588, 48595), (735, 38876), (980, 29157), (1470, 19438), (2940, 9719)]