71981120

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{11839}}^1$

素因数の和:11875

約数の個数: 56

約数和(自身を含む): 180441600

約数和(自身を除く): 108460480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 6080, 11839, 23678, 47356, 59195, 94712, 118390, 189424, 224941, 236780, 378848, 449882, 473560, 757696, 899764, 947120, 1124705, 1799528, 1894240, 2249410, 3599056, 3788480, 4498820, 7198112, 8997640, 14396224, 17995280, 35990560, 71981120]

約数ペア:

[(1, 71981120), (2, 35990560), (4, 17995280), (5, 14396224), (8, 8997640), (10, 7198112), (16, 4498820), (19, 3788480), (20, 3599056), (32, 2249410), (38, 1894240), (40, 1799528), (64, 1124705), (76, 947120), (80, 899764), (95, 757696), (152, 473560), (160, 449882), (190, 378848), (304, 236780), (320, 224941), (380, 189424), (608, 118390), (760, 94712), (1216, 59195), (1520, 47356), (3040, 23678), (6080, 11839)]