220321280

素因数分解:

$2^9\times 5^1\times {\mathrm{89}}^1\times {\mathrm{967}}^1$

素因数の和:1079

約数の個数: 80

約数和(自身を含む): 534742560

約数和(自身を除く): 314421280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 256, 320, 356, 445, 512, 640, 712, 890, 967, 1280, 1424, 1780, 1934, 2560, 2848, 3560, 3868, 4835, 5696, 7120, 7736, 9670, 11392, 14240, 15472, 19340, 22784, 28480, 30944, 38680, 45568, 56960, 61888, 77360, 86063, 113920, 123776, 154720, 172126, 227840, 247552, 309440, 344252, 430315, 495104, 618880, 688504, 860630, 1237760, 1377008, 1721260, 2475520, 2754016, 3442520, 5508032, 6885040, 11016064, 13770080, 22032128, 27540160, 44064256, 55080320, 110160640, 220321280]

約数ペア:

[(1, 220321280), (2, 110160640), (4, 55080320), (5, 44064256), (8, 27540160), (10, 22032128), (16, 13770080), (20, 11016064), (32, 6885040), (40, 5508032), (64, 3442520), (80, 2754016), (89, 2475520), (128, 1721260), (160, 1377008), (178, 1237760), (256, 860630), (320, 688504), (356, 618880), (445, 495104), (512, 430315), (640, 344252), (712, 309440), (890, 247552), (967, 227840), (1280, 172126), (1424, 154720), (1780, 123776), (1934, 113920), (2560, 86063), (2848, 77360), (3560, 61888), (3868, 56960), (4835, 45568), (5696, 38680), (7120, 30944), (7736, 28480), (9670, 22784), (11392, 19340), (14240, 15472)]