20133920

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:250

約数の個数: 96

約数和(自身を含む): 51710400

約数和(自身を除く): 31576480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 37, 38, 40, 74, 76, 80, 95, 148, 152, 160, 179, 185, 190, 296, 304, 358, 370, 380, 592, 608, 703, 716, 740, 760, 895, 1184, 1406, 1432, 1480, 1520, 1790, 2812, 2864, 2960, 3040, 3401, 3515, 3580, 5624, 5728, 5920, 6623, 6802, 7030, 7160, 11248, 13246, 13604, 14060, 14320, 17005, 22496, 26492, 27208, 28120, 28640, 33115, 34010, 52984, 54416, 56240, 66230, 68020, 105968, 108832, 112480, 125837, 132460, 136040, 211936, 251674, 264920, 272080, 503348, 529840, 544160, 629185, 1006696, 1059680, 1258370, 2013392, 2516740, 4026784, 5033480, 10066960, 20133920]

約数ペア:

[(1, 20133920), (2, 10066960), (4, 5033480), (5, 4026784), (8, 2516740), (10, 2013392), (16, 1258370), (19, 1059680), (20, 1006696), (32, 629185), (37, 544160), (38, 529840), (40, 503348), (74, 272080), (76, 264920), (80, 251674), (95, 211936), (148, 136040), (152, 132460), (160, 125837), (179, 112480), (185, 108832), (190, 105968), (296, 68020), (304, 66230), (358, 56240), (370, 54416), (380, 52984), (592, 34010), (608, 33115), (703, 28640), (716, 28120), (740, 27208), (760, 26492), (895, 22496), (1184, 17005), (1406, 14320), (1432, 14060), (1480, 13604), (1520, 13246), (1790, 11248), (2812, 7160), (2864, 7030), (2960, 6802), (3040, 6623), (3401, 5920), (3515, 5728), (3580, 5624)]