18719360

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2659}}^1$

素因数の和:2689

約数の個数: 64

約数和(自身を含む): 48837600

約数和(自身を除く): 30118240

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 320, 352, 440, 640, 704, 880, 1408, 1760, 2659, 3520, 5318, 7040, 10636, 13295, 21272, 26590, 29249, 42544, 53180, 58498, 85088, 106360, 116996, 146245, 170176, 212720, 233992, 292490, 340352, 425440, 467984, 584980, 850880, 935968, 1169960, 1701760, 1871936, 2339920, 3743872, 4679840, 9359680, 18719360]

約数ペア:

[(1, 18719360), (2, 9359680), (4, 4679840), (5, 3743872), (8, 2339920), (10, 1871936), (11, 1701760), (16, 1169960), (20, 935968), (22, 850880), (32, 584980), (40, 467984), (44, 425440), (55, 340352), (64, 292490), (80, 233992), (88, 212720), (110, 170176), (128, 146245), (160, 116996), (176, 106360), (220, 85088), (320, 58498), (352, 53180), (440, 42544), (640, 29249), (704, 26590), (880, 21272), (1408, 13295), (1760, 10636), (2659, 7040), (3520, 5318)]