19115840

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:136

約数の個数: 112

約数和(自身を含む): 49158144

約数和(自身を除く): 30042304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 47, 62, 64, 80, 82, 94, 124, 155, 160, 164, 188, 205, 235, 248, 310, 320, 328, 376, 410, 470, 496, 620, 656, 752, 820, 940, 992, 1240, 1271, 1312, 1457, 1504, 1640, 1880, 1927, 1984, 2480, 2542, 2624, 2914, 3008, 3280, 3760, 3854, 4960, 5084, 5828, 6355, 6560, 7285, 7520, 7708, 9635, 9920, 10168, 11656, 12710, 13120, 14570, 15040, 15416, 19270, 20336, 23312, 25420, 29140, 30832, 38540, 40672, 46624, 50840, 58280, 59737, 61664, 77080, 81344, 93248, 101680, 116560, 119474, 123328, 154160, 203360, 233120, 238948, 298685, 308320, 406720, 466240, 477896, 597370, 616640, 955792, 1194740, 1911584, 2389480, 3823168, 4778960, 9557920, 19115840]

約数ペア:

[(1, 19115840), (2, 9557920), (4, 4778960), (5, 3823168), (8, 2389480), (10, 1911584), (16, 1194740), (20, 955792), (31, 616640), (32, 597370), (40, 477896), (41, 466240), (47, 406720), (62, 308320), (64, 298685), (80, 238948), (82, 233120), (94, 203360), (124, 154160), (155, 123328), (160, 119474), (164, 116560), (188, 101680), (205, 93248), (235, 81344), (248, 77080), (310, 61664), (320, 59737), (328, 58280), (376, 50840), (410, 46624), (470, 40672), (496, 38540), (620, 30832), (656, 29140), (752, 25420), (820, 23312), (940, 20336), (992, 19270), (1240, 15416), (1271, 15040), (1312, 14570), (1457, 13120), (1504, 12710), (1640, 11656), (1880, 10168), (1927, 9920), (1984, 9635), (2480, 7708), (2542, 7520), (2624, 7285), (2914, 6560), (3008, 6355), (3280, 5828), (3760, 5084), (3854, 4960)]