19730944

素因数分解:

$2^9\times {\mathrm{89}}^1\times {\mathrm{433}}^1$

素因数の和:540

約数の個数: 40

約数和(自身を含む): 39958380

約数和(自身を除く): 20227436

約数列:

[1, 2, 4, 8, 16, 32, 64, 89, 128, 178, 256, 356, 433, 512, 712, 866, 1424, 1732, 2848, 3464, 5696, 6928, 11392, 13856, 22784, 27712, 38537, 45568, 55424, 77074, 110848, 154148, 221696, 308296, 616592, 1233184, 2466368, 4932736, 9865472, 19730944]

約数ペア:

[(1, 19730944), (2, 9865472), (4, 4932736), (8, 2466368), (16, 1233184), (32, 616592), (64, 308296), (89, 221696), (128, 154148), (178, 110848), (256, 77074), (356, 55424), (433, 45568), (512, 38537), (712, 27712), (866, 22784), (1424, 13856), (1732, 11392), (2848, 6928), (3464, 5696)]