18821360

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1$

素因数の和:282

約数の個数: 80

約数和(自身を含む): 46764864

約数和(自身を除く): 27943504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 53, 80, 92, 106, 115, 184, 193, 212, 230, 265, 368, 386, 424, 460, 530, 772, 848, 920, 965, 1060, 1219, 1544, 1840, 1930, 2120, 2438, 3088, 3860, 4240, 4439, 4876, 6095, 7720, 8878, 9752, 10229, 12190, 15440, 17756, 19504, 20458, 22195, 24380, 35512, 40916, 44390, 48760, 51145, 71024, 81832, 88780, 97520, 102290, 163664, 177560, 204580, 235267, 355120, 409160, 470534, 818320, 941068, 1176335, 1882136, 2352670, 3764272, 4705340, 9410680, 18821360]

約数ペア:

[(1, 18821360), (2, 9410680), (4, 4705340), (5, 3764272), (8, 2352670), (10, 1882136), (16, 1176335), (20, 941068), (23, 818320), (40, 470534), (46, 409160), (53, 355120), (80, 235267), (92, 204580), (106, 177560), (115, 163664), (184, 102290), (193, 97520), (212, 88780), (230, 81832), (265, 71024), (368, 51145), (386, 48760), (424, 44390), (460, 40916), (530, 35512), (772, 24380), (848, 22195), (920, 20458), (965, 19504), (1060, 17756), (1219, 15440), (1544, 12190), (1840, 10229), (1930, 9752), (2120, 8878), (2438, 7720), (3088, 6095), (3860, 4876), (4240, 4439)]