201583220

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{269}}^1\times {\mathrm{421}}^1$

素因数の和:788

約数の個数: 48

約数和(自身を含む): 430693200

約数和(自身を除く): 229109980

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 269, 356, 421, 445, 538, 842, 890, 1076, 1345, 1684, 1780, 2105, 2690, 4210, 5380, 8420, 23941, 37469, 47882, 74938, 95764, 113249, 119705, 149876, 187345, 226498, 239410, 374690, 452996, 478820, 566245, 749380, 1132490, 2264980, 10079161, 20158322, 40316644, 50395805, 100791610, 201583220]

約数ペア:

[(1, 201583220), (2, 100791610), (4, 50395805), (5, 40316644), (10, 20158322), (20, 10079161), (89, 2264980), (178, 1132490), (269, 749380), (356, 566245), (421, 478820), (445, 452996), (538, 374690), (842, 239410), (890, 226498), (1076, 187345), (1345, 149876), (1684, 119705), (1780, 113249), (2105, 95764), (2690, 74938), (4210, 47882), (5380, 37469), (8420, 23941)]