215510240

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{122449}}^1$

素因数の和:122475

約数の個数: 48

約数和(自身を含む): 555433200

約数和(自身を除く): 339922960

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 122449, 244898, 489796, 612245, 979592, 1224490, 1346939, 1959184, 2448980, 2693878, 3918368, 4897960, 5387756, 6734695, 9795920, 10775512, 13469390, 19591840, 21551024, 26938780, 43102048, 53877560, 107755120, 215510240]

約数ペア:

[(1, 215510240), (2, 107755120), (4, 53877560), (5, 43102048), (8, 26938780), (10, 21551024), (11, 19591840), (16, 13469390), (20, 10775512), (22, 9795920), (32, 6734695), (40, 5387756), (44, 4897960), (55, 3918368), (80, 2693878), (88, 2448980), (110, 1959184), (160, 1346939), (176, 1224490), (220, 979592), (352, 612245), (440, 489796), (880, 244898), (1760, 122449)]