205613520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{122389}}^1$

素因数の和:122412

約数の個数: 80

約数和(自身を含む): 728465280

約数和(自身を除く): 522851760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 122389, 244778, 367167, 489556, 611945, 734334, 856723, 979112, 1223890, 1468668, 1713446, 1835835, 1958224, 2447780, 2570169, 2937336, 3426892, 3671670, 4283615, 4895560, 5140338, 5874672, 6853784, 7343340, 8567230, 9791120, 10280676, 12850845, 13707568, 14686680, 17134460, 20561352, 25701690, 29373360, 34268920, 41122704, 51403380, 68537840, 102806760, 205613520]

約数ペア:

[(1, 205613520), (2, 102806760), (3, 68537840), (4, 51403380), (5, 41122704), (6, 34268920), (7, 29373360), (8, 25701690), (10, 20561352), (12, 17134460), (14, 14686680), (15, 13707568), (16, 12850845), (20, 10280676), (21, 9791120), (24, 8567230), (28, 7343340), (30, 6853784), (35, 5874672), (40, 5140338), (42, 4895560), (48, 4283615), (56, 3671670), (60, 3426892), (70, 2937336), (80, 2570169), (84, 2447780), (105, 1958224), (112, 1835835), (120, 1713446), (140, 1468668), (168, 1223890), (210, 979112), (240, 856723), (280, 734334), (336, 611945), (420, 489556), (560, 367167), (840, 244778), (1680, 122389)]