81127670

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{631}}^1$

素因数の和:717

約数の個数: 64

約数和(自身を含む): 168182784

約数和(自身を除く): 87055114

約数列:

[1, 2, 5, 10, 13, 23, 26, 43, 46, 65, 86, 115, 130, 215, 230, 299, 430, 559, 598, 631, 989, 1118, 1262, 1495, 1978, 2795, 2990, 3155, 4945, 5590, 6310, 8203, 9890, 12857, 14513, 16406, 25714, 27133, 29026, 41015, 54266, 64285, 72565, 82030, 128570, 135665, 145130, 188669, 271330, 352729, 377338, 624059, 705458, 943345, 1248118, 1763645, 1886690, 3120295, 3527290, 6240590, 8112767, 16225534, 40563835, 81127670]

約数ペア:

[(1, 81127670), (2, 40563835), (5, 16225534), (10, 8112767), (13, 6240590), (23, 3527290), (26, 3120295), (43, 1886690), (46, 1763645), (65, 1248118), (86, 943345), (115, 705458), (130, 624059), (215, 377338), (230, 352729), (299, 271330), (430, 188669), (559, 145130), (598, 135665), (631, 128570), (989, 82030), (1118, 72565), (1262, 64285), (1495, 54266), (1978, 41015), (2795, 29026), (2990, 27133), (3155, 25714), (4945, 16406), (5590, 14513), (6310, 12857), (8203, 9890)]