19540144

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2539}}^1$

素因数の和:2597

約数の個数: 40

約数和(自身を含む): 41889680

約数和(自身を除く): 22349536

約数列:

[1, 2, 4, 8, 13, 16, 26, 37, 52, 74, 104, 148, 208, 296, 481, 592, 962, 1924, 2539, 3848, 5078, 7696, 10156, 20312, 33007, 40624, 66014, 93943, 132028, 187886, 264056, 375772, 528112, 751544, 1221259, 1503088, 2442518, 4885036, 9770072, 19540144]

約数ペア:

[(1, 19540144), (2, 9770072), (4, 4885036), (8, 2442518), (13, 1503088), (16, 1221259), (26, 751544), (37, 528112), (52, 375772), (74, 264056), (104, 187886), (148, 132028), (208, 93943), (296, 66014), (481, 40624), (592, 33007), (962, 20312), (1924, 10156), (2539, 7696), (3848, 5078)]