203439830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{421}}^1$

素因数の和:653

約数の個数: 64

約数和(自身を含む): 420028416

約数和(自身を除く): 216588586

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 191, 230, 253, 382, 421, 506, 842, 955, 1265, 1910, 2101, 2105, 2530, 4202, 4210, 4393, 4631, 8786, 9262, 9683, 10505, 19366, 21010, 21965, 23155, 43930, 46310, 48323, 48415, 80411, 96646, 96830, 106513, 160822, 213026, 241615, 402055, 483230, 532565, 804110, 884521, 1065130, 1769042, 1849453, 3698906, 4422605, 8845210, 9247265, 18494530, 20343983, 40687966, 101719915, 203439830]

約数ペア:

[(1, 203439830), (2, 101719915), (5, 40687966), (10, 20343983), (11, 18494530), (22, 9247265), (23, 8845210), (46, 4422605), (55, 3698906), (110, 1849453), (115, 1769042), (191, 1065130), (230, 884521), (253, 804110), (382, 532565), (421, 483230), (506, 402055), (842, 241615), (955, 213026), (1265, 160822), (1910, 106513), (2101, 96830), (2105, 96646), (2530, 80411), (4202, 48415), (4210, 48323), (4393, 46310), (4631, 43930), (8786, 23155), (9262, 21965), (9683, 21010), (10505, 19366)]