31413280

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{11549}}^1$

素因数の和:11581

約数の個数: 48

約数和(自身を含む): 78586200

約数和(自身を除く): 47172920

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 11549, 23098, 46196, 57745, 92392, 115490, 184784, 196333, 230980, 369568, 392666, 461960, 785332, 923920, 981665, 1570664, 1847840, 1963330, 3141328, 3926660, 6282656, 7853320, 15706640, 31413280]

約数ペア:

[(1, 31413280), (2, 15706640), (4, 7853320), (5, 6282656), (8, 3926660), (10, 3141328), (16, 1963330), (17, 1847840), (20, 1570664), (32, 981665), (34, 923920), (40, 785332), (68, 461960), (80, 392666), (85, 369568), (136, 230980), (160, 196333), (170, 184784), (272, 115490), (340, 92392), (544, 57745), (680, 46196), (1360, 23098), (2720, 11549)]