71919980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{113}}^1\times {\mathrm{263}}^1$

素因数の和:407

約数の個数: 72

約数和(自身を含む): 168116256

約数和(自身を除く): 96196276

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 113, 121, 220, 226, 242, 263, 452, 484, 526, 565, 605, 1052, 1130, 1210, 1243, 1315, 2260, 2420, 2486, 2630, 2893, 4972, 5260, 5786, 6215, 11572, 12430, 13673, 14465, 24860, 27346, 28930, 29719, 31823, 54692, 57860, 59438, 63646, 68365, 118876, 127292, 136730, 148595, 159115, 273460, 297190, 318230, 326909, 594380, 636460, 653818, 1307636, 1634545, 3269090, 3595999, 6538180, 7191998, 14383996, 17979995, 35959990, 71919980]

約数ペア:

[(1, 71919980), (2, 35959990), (4, 17979995), (5, 14383996), (10, 7191998), (11, 6538180), (20, 3595999), (22, 3269090), (44, 1634545), (55, 1307636), (110, 653818), (113, 636460), (121, 594380), (220, 326909), (226, 318230), (242, 297190), (263, 273460), (452, 159115), (484, 148595), (526, 136730), (565, 127292), (605, 118876), (1052, 68365), (1130, 63646), (1210, 59438), (1243, 57860), (1315, 54692), (2260, 31823), (2420, 29719), (2486, 28930), (2630, 27346), (2893, 24860), (4972, 14465), (5260, 13673), (5786, 12430), (6215, 11572)]