277865900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{1013}}^1$

素因数の和:1251

約数の個数: 72

約数和(自身を含む): 653072784

約数和(自身を除く): 375206884

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 211, 260, 325, 422, 650, 844, 1013, 1055, 1300, 2026, 2110, 2743, 4052, 4220, 5065, 5275, 5486, 10130, 10550, 10972, 13169, 13715, 20260, 21100, 25325, 26338, 27430, 50650, 52676, 54860, 65845, 68575, 101300, 131690, 137150, 213743, 263380, 274300, 329225, 427486, 658450, 854972, 1068715, 1316900, 2137430, 2778659, 4274860, 5343575, 5557318, 10687150, 11114636, 13893295, 21374300, 27786590, 55573180, 69466475, 138932950, 277865900]

約数ペア:

[(1, 277865900), (2, 138932950), (4, 69466475), (5, 55573180), (10, 27786590), (13, 21374300), (20, 13893295), (25, 11114636), (26, 10687150), (50, 5557318), (52, 5343575), (65, 4274860), (100, 2778659), (130, 2137430), (211, 1316900), (260, 1068715), (325, 854972), (422, 658450), (650, 427486), (844, 329225), (1013, 274300), (1055, 263380), (1300, 213743), (2026, 137150), (2110, 131690), (2743, 101300), (4052, 68575), (4220, 65845), (5065, 54860), (5275, 52676), (5486, 50650), (10130, 27430), (10550, 26338), (10972, 25325), (13169, 21100), (13715, 20260)]