19909450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{683}}^1$

素因数の和:759

約数の個数: 48

約数和(自身を含む): 41220576

約数和(自身を除く): 21311126

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 53, 55, 106, 110, 265, 275, 530, 550, 583, 683, 1166, 1325, 1366, 2650, 2915, 3415, 5830, 6830, 7513, 14575, 15026, 17075, 29150, 34150, 36199, 37565, 72398, 75130, 180995, 187825, 361990, 375650, 398189, 796378, 904975, 1809950, 1990945, 3981890, 9954725, 19909450]

約数ペア:

[(1, 19909450), (2, 9954725), (5, 3981890), (10, 1990945), (11, 1809950), (22, 904975), (25, 796378), (50, 398189), (53, 375650), (55, 361990), (106, 187825), (110, 180995), (265, 75130), (275, 72398), (530, 37565), (550, 36199), (583, 34150), (683, 29150), (1166, 17075), (1325, 15026), (1366, 14575), (2650, 7513), (2915, 6830), (3415, 5830)]