204500980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{347}}^1\times {\mathrm{373}}^1$

素因数の和:808

約数の個数: 48

約数和(自身を含む): 437310720

約数和(自身を除く): 232809740

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 347, 373, 395, 694, 746, 790, 1388, 1492, 1580, 1735, 1865, 3470, 3730, 6940, 7460, 27413, 29467, 54826, 58934, 109652, 117868, 129431, 137065, 147335, 258862, 274130, 294670, 517724, 548260, 589340, 647155, 1294310, 2588620, 10225049, 20450098, 40900196, 51125245, 102250490, 204500980]

約数ペア:

[(1, 204500980), (2, 102250490), (4, 51125245), (5, 40900196), (10, 20450098), (20, 10225049), (79, 2588620), (158, 1294310), (316, 647155), (347, 589340), (373, 548260), (395, 517724), (694, 294670), (746, 274130), (790, 258862), (1388, 147335), (1492, 137065), (1580, 129431), (1735, 117868), (1865, 109652), (3470, 58934), (3730, 54826), (6940, 29467), (7460, 27413)]