21765360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3943}}^1$

素因数の和:3982

約数の個数: 80

約数和(自身を含む): 70424064

約数和(自身を除く): 48658704

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 3943, 5520, 7886, 11829, 15772, 19715, 23658, 31544, 39430, 47316, 59145, 63088, 78860, 90689, 94632, 118290, 157720, 181378, 189264, 236580, 272067, 315440, 362756, 453445, 473160, 544134, 725512, 906890, 946320, 1088268, 1360335, 1451024, 1813780, 2176536, 2720670, 3627560, 4353072, 5441340, 7255120, 10882680, 21765360]

約数ペア:

[(1, 21765360), (2, 10882680), (3, 7255120), (4, 5441340), (5, 4353072), (6, 3627560), (8, 2720670), (10, 2176536), (12, 1813780), (15, 1451024), (16, 1360335), (20, 1088268), (23, 946320), (24, 906890), (30, 725512), (40, 544134), (46, 473160), (48, 453445), (60, 362756), (69, 315440), (80, 272067), (92, 236580), (115, 189264), (120, 181378), (138, 157720), (184, 118290), (230, 94632), (240, 90689), (276, 78860), (345, 63088), (368, 59145), (460, 47316), (552, 39430), (690, 31544), (920, 23658), (1104, 19715), (1380, 15772), (1840, 11829), (2760, 7886), (3943, 5520)]