81391934

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 146448960

約数和(自身を除く): 65057026

約数列:

[1, 2, 13, 19, 26, 37, 38, 61, 73, 74, 122, 146, 247, 481, 494, 703, 793, 949, 962, 1159, 1387, 1406, 1586, 1898, 2257, 2318, 2701, 2774, 4453, 4514, 5402, 8906, 9139, 15067, 18031, 18278, 29341, 30134, 35113, 36062, 42883, 51319, 57889, 58682, 70226, 84607, 85766, 102638, 115778, 164761, 169214, 329522, 557479, 667147, 1099891, 1114958, 1334294, 2141893, 2199782, 3130459, 4283786, 6260918, 40695967, 81391934]

約数ペア:

[(1, 81391934), (2, 40695967), (13, 6260918), (19, 4283786), (26, 3130459), (37, 2199782), (38, 2141893), (61, 1334294), (73, 1114958), (74, 1099891), (122, 667147), (146, 557479), (247, 329522), (481, 169214), (494, 164761), (703, 115778), (793, 102638), (949, 85766), (962, 84607), (1159, 70226), (1387, 58682), (1406, 57889), (1586, 51319), (1898, 42883), (2257, 36062), (2318, 35113), (2701, 30134), (2774, 29341), (4453, 18278), (4514, 18031), (5402, 15067), (8906, 9139)]