19973664

素因数分解:

$2^5\times 3^2\times {\mathrm{223}}^1\times {\mathrm{311}}^1$

素因数の和:550

約数の個数: 72

約数和(自身を含む): 57238272

約数和(自身を除く): 37264608

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 223, 288, 311, 446, 622, 669, 892, 933, 1244, 1338, 1784, 1866, 2007, 2488, 2676, 2799, 3568, 3732, 4014, 4976, 5352, 5598, 7136, 7464, 8028, 9952, 10704, 11196, 14928, 16056, 21408, 22392, 29856, 32112, 44784, 64224, 69353, 89568, 138706, 208059, 277412, 416118, 554824, 624177, 832236, 1109648, 1248354, 1664472, 2219296, 2496708, 3328944, 4993416, 6657888, 9986832, 19973664]

約数ペア:

[(1, 19973664), (2, 9986832), (3, 6657888), (4, 4993416), (6, 3328944), (8, 2496708), (9, 2219296), (12, 1664472), (16, 1248354), (18, 1109648), (24, 832236), (32, 624177), (36, 554824), (48, 416118), (72, 277412), (96, 208059), (144, 138706), (223, 89568), (288, 69353), (311, 64224), (446, 44784), (622, 32112), (669, 29856), (892, 22392), (933, 21408), (1244, 16056), (1338, 14928), (1784, 11196), (1866, 10704), (2007, 9952), (2488, 8028), (2676, 7464), (2799, 7136), (3568, 5598), (3732, 5352), (4014, 4976)]