78221210

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1\times {\mathrm{491}}^1$

素因数の和:766

約数の個数: 32

約数和(自身を含む): 143467200

約数和(自身を除く): 65245990

約数列:

[1, 2, 5, 10, 89, 178, 179, 358, 445, 491, 890, 895, 982, 1790, 2455, 4910, 15931, 31862, 43699, 79655, 87398, 87889, 159310, 175778, 218495, 436990, 439445, 878890, 7822121, 15644242, 39110605, 78221210]

約数ペア:

[(1, 78221210), (2, 39110605), (5, 15644242), (10, 7822121), (89, 878890), (178, 439445), (179, 436990), (358, 218495), (445, 175778), (491, 159310), (890, 87889), (895, 87398), (982, 79655), (1790, 43699), (2455, 31862), (4910, 15931)]