31911720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{15643}}^1$

素因数の和:15674

約数の個数: 64

約数和(自身を含む): 101373120

約数和(自身を除く): 69461400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 15643, 31286, 46929, 62572, 78215, 93858, 125144, 156430, 187716, 234645, 265931, 312860, 375432, 469290, 531862, 625720, 797793, 938580, 1063724, 1329655, 1595586, 1877160, 2127448, 2659310, 3191172, 3988965, 5318620, 6382344, 7977930, 10637240, 15955860, 31911720]

約数ペア:

[(1, 31911720), (2, 15955860), (3, 10637240), (4, 7977930), (5, 6382344), (6, 5318620), (8, 3988965), (10, 3191172), (12, 2659310), (15, 2127448), (17, 1877160), (20, 1595586), (24, 1329655), (30, 1063724), (34, 938580), (40, 797793), (51, 625720), (60, 531862), (68, 469290), (85, 375432), (102, 312860), (120, 265931), (136, 234645), (170, 187716), (204, 156430), (255, 125144), (340, 93858), (408, 78215), (510, 62572), (680, 46929), (1020, 31286), (2040, 15643)]