19914880

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^2\times {\mathrm{37}}^1$

素因数の和:114

約数の個数: 96

約数和(自身を含む): 50639940

約数和(自身を除く): 30725060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 37, 40, 58, 64, 74, 80, 116, 128, 145, 148, 160, 185, 232, 290, 296, 320, 370, 464, 580, 592, 640, 740, 841, 928, 1073, 1160, 1184, 1480, 1682, 1856, 2146, 2320, 2368, 2960, 3364, 3712, 4205, 4292, 4640, 4736, 5365, 5920, 6728, 8410, 8584, 9280, 10730, 11840, 13456, 16820, 17168, 18560, 21460, 23680, 26912, 31117, 33640, 34336, 42920, 53824, 62234, 67280, 68672, 85840, 107648, 124468, 134560, 137344, 155585, 171680, 248936, 269120, 311170, 343360, 497872, 538240, 622340, 686720, 995744, 1244680, 1991488, 2489360, 3982976, 4978720, 9957440, 19914880]

約数ペア:

[(1, 19914880), (2, 9957440), (4, 4978720), (5, 3982976), (8, 2489360), (10, 1991488), (16, 1244680), (20, 995744), (29, 686720), (32, 622340), (37, 538240), (40, 497872), (58, 343360), (64, 311170), (74, 269120), (80, 248936), (116, 171680), (128, 155585), (145, 137344), (148, 134560), (160, 124468), (185, 107648), (232, 85840), (290, 68672), (296, 67280), (320, 62234), (370, 53824), (464, 42920), (580, 34336), (592, 33640), (640, 31117), (740, 26912), (841, 23680), (928, 21460), (1073, 18560), (1160, 17168), (1184, 16820), (1480, 13456), (1682, 11840), (1856, 10730), (2146, 9280), (2320, 8584), (2368, 8410), (2960, 6728), (3364, 5920), (3712, 5365), (4205, 4736), (4292, 4640)]