81946480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{251}}^1$

素因数の和:335

約数の個数: 160

約数和(自身を含む): 242984448

約数和(自身を除く): 161037968

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 53, 55, 56, 70, 77, 80, 88, 106, 110, 112, 140, 154, 176, 212, 220, 251, 265, 280, 308, 371, 385, 424, 440, 502, 530, 560, 583, 616, 742, 770, 848, 880, 1004, 1060, 1166, 1232, 1255, 1484, 1540, 1757, 1855, 2008, 2120, 2332, 2510, 2761, 2915, 2968, 3080, 3514, 3710, 4016, 4081, 4240, 4664, 5020, 5522, 5830, 5936, 6160, 7028, 7420, 8162, 8785, 9328, 10040, 11044, 11660, 13303, 13805, 14056, 14840, 16324, 17570, 19327, 20080, 20405, 22088, 23320, 26606, 27610, 28112, 29680, 32648, 35140, 38654, 40810, 44176, 46640, 53212, 55220, 65296, 66515, 70280, 77308, 81620, 93121, 96635, 106424, 110440, 133030, 140560, 146333, 154616, 163240, 186242, 193270, 212848, 220880, 266060, 292666, 309232, 326480, 372484, 386540, 465605, 532120, 585332, 731665, 744968, 773080, 931210, 1024331, 1064240, 1170664, 1463330, 1489936, 1546160, 1862420, 2048662, 2341328, 2926660, 3724840, 4097324, 5121655, 5853320, 7449680, 8194648, 10243310, 11706640, 16389296, 20486620, 40973240, 81946480]

約数ペア:

[(1, 81946480), (2, 40973240), (4, 20486620), (5, 16389296), (7, 11706640), (8, 10243310), (10, 8194648), (11, 7449680), (14, 5853320), (16, 5121655), (20, 4097324), (22, 3724840), (28, 2926660), (35, 2341328), (40, 2048662), (44, 1862420), (53, 1546160), (55, 1489936), (56, 1463330), (70, 1170664), (77, 1064240), (80, 1024331), (88, 931210), (106, 773080), (110, 744968), (112, 731665), (140, 585332), (154, 532120), (176, 465605), (212, 386540), (220, 372484), (251, 326480), (265, 309232), (280, 292666), (308, 266060), (371, 220880), (385, 212848), (424, 193270), (440, 186242), (502, 163240), (530, 154616), (560, 146333), (583, 140560), (616, 133030), (742, 110440), (770, 106424), (848, 96635), (880, 93121), (1004, 81620), (1060, 77308), (1166, 70280), (1232, 66515), (1255, 65296), (1484, 55220), (1540, 53212), (1757, 46640), (1855, 44176), (2008, 40810), (2120, 38654), (2332, 35140), (2510, 32648), (2761, 29680), (2915, 28112), (2968, 27610), (3080, 26606), (3514, 23320), (3710, 22088), (4016, 20405), (4081, 20080), (4240, 19327), (4664, 17570), (5020, 16324), (5522, 14840), (5830, 14056), (5936, 13805), (6160, 13303), (7028, 11660), (7420, 11044), (8162, 10040), (8785, 9328)]