20436040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{733}}^1$

素因数の和:802

約数の個数: 64

約数和(自身を含む): 49941360

約数和(自身を除く): 29505320

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 68, 82, 85, 136, 164, 170, 205, 328, 340, 410, 680, 697, 733, 820, 1394, 1466, 1640, 2788, 2932, 3485, 3665, 5576, 5864, 6970, 7330, 12461, 13940, 14660, 24922, 27880, 29320, 30053, 49844, 60106, 62305, 99688, 120212, 124610, 150265, 240424, 249220, 300530, 498440, 510901, 601060, 1021802, 1202120, 2043604, 2554505, 4087208, 5109010, 10218020, 20436040]

約数ペア:

[(1, 20436040), (2, 10218020), (4, 5109010), (5, 4087208), (8, 2554505), (10, 2043604), (17, 1202120), (20, 1021802), (34, 601060), (40, 510901), (41, 498440), (68, 300530), (82, 249220), (85, 240424), (136, 150265), (164, 124610), (170, 120212), (205, 99688), (328, 62305), (340, 60106), (410, 49844), (680, 30053), (697, 29320), (733, 27880), (820, 24922), (1394, 14660), (1466, 13940), (1640, 12461), (2788, 7330), (2932, 6970), (3485, 5864), (3665, 5576)]