20128170

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{647}}^1$

素因数の和:735

約数の個数: 64

約数和(自身を含む): 52068096

約数和(自身を除く): 31939926

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 61, 85, 102, 122, 170, 183, 255, 305, 366, 510, 610, 647, 915, 1037, 1294, 1830, 1941, 2074, 3111, 3235, 3882, 5185, 6222, 6470, 9705, 10370, 10999, 15555, 19410, 21998, 31110, 32997, 39467, 54995, 65994, 78934, 109990, 118401, 164985, 197335, 236802, 329970, 394670, 592005, 670939, 1184010, 1341878, 2012817, 3354695, 4025634, 6709390, 10064085, 20128170]

約数ペア:

[(1, 20128170), (2, 10064085), (3, 6709390), (5, 4025634), (6, 3354695), (10, 2012817), (15, 1341878), (17, 1184010), (30, 670939), (34, 592005), (51, 394670), (61, 329970), (85, 236802), (102, 197335), (122, 164985), (170, 118401), (183, 109990), (255, 78934), (305, 65994), (366, 54995), (510, 39467), (610, 32997), (647, 31110), (915, 21998), (1037, 19410), (1294, 15555), (1830, 10999), (1941, 10370), (2074, 9705), (3111, 6470), (3235, 6222), (3882, 5185)]