209391720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{102643}}^1$

素因数の和:102674

約数の個数: 64

約数和(自身を含む): 665133120

約数和(自身を除く): 455741400

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, 102643, 205286, 307929, 410572, 513215, 615858, 821144, 1026430, 1231716, 1539645, 1744931, 2052860, 2463432, 3079290, 3489862, 4105720, 5234793, 6158580, 6979724, 8724655, 10469586, 12317160, 13959448, 17449310, 20939172, 26173965, 34898620, 41878344, 52347930, 69797240, 104695860, 209391720]

約数ペア:

[(1, 209391720), (2, 104695860), (3, 69797240), (4, 52347930), (5, 41878344), (6, 34898620), (8, 26173965), (10, 20939172), (12, 17449310), (15, 13959448), (17, 12317160), (20, 10469586), (24, 8724655), (30, 6979724), (34, 6158580), (40, 5234793), (51, 4105720), (60, 3489862), (68, 3079290), (85, 2463432), (102, 2052860), (120, 1744931), (136, 1539645), (170, 1231716), (204, 1026430), (255, 821144), (340, 615858), (408, 513215), (510, 410572), (680, 307929), (1020, 205286), (2040, 102643)]