87402640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2711}}^1$

素因数の和:2768

約数の個数: 80

約数和(自身を含む): 225985536

約数和(自身を除く): 138582896

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 2711, 3224, 4030, 5422, 6448, 8060, 10844, 13555, 16120, 21688, 27110, 32240, 35243, 43376, 54220, 70486, 84041, 108440, 140972, 168082, 176215, 216880, 281944, 336164, 352430, 420205, 563888, 672328, 704860, 840410, 1092533, 1344656, 1409720, 1680820, 2185066, 2819440, 3361640, 4370132, 5462665, 6723280, 8740264, 10925330, 17480528, 21850660, 43701320, 87402640]

約数ペア:

[(1, 87402640), (2, 43701320), (4, 21850660), (5, 17480528), (8, 10925330), (10, 8740264), (13, 6723280), (16, 5462665), (20, 4370132), (26, 3361640), (31, 2819440), (40, 2185066), (52, 1680820), (62, 1409720), (65, 1344656), (80, 1092533), (104, 840410), (124, 704860), (130, 672328), (155, 563888), (208, 420205), (248, 352430), (260, 336164), (310, 281944), (403, 216880), (496, 176215), (520, 168082), (620, 140972), (806, 108440), (1040, 84041), (1240, 70486), (1612, 54220), (2015, 43376), (2480, 35243), (2711, 32240), (3224, 27110), (4030, 21688), (5422, 16120), (6448, 13555), (8060, 10844)]