40783990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 83119680

約数和(自身を除く): 42335690

約数列:

[1, 2, 5, 10, 13, 26, 37, 61, 65, 74, 122, 130, 139, 185, 278, 305, 370, 481, 610, 695, 793, 962, 1390, 1586, 1807, 2257, 2405, 3614, 3965, 4514, 4810, 5143, 7930, 8479, 9035, 10286, 11285, 16958, 18070, 22570, 25715, 29341, 42395, 51430, 58682, 66859, 84790, 110227, 133718, 146705, 220454, 293410, 313723, 334295, 551135, 627446, 668590, 1102270, 1568615, 3137230, 4078399, 8156798, 20391995, 40783990]

約数ペア:

[(1, 40783990), (2, 20391995), (5, 8156798), (10, 4078399), (13, 3137230), (26, 1568615), (37, 1102270), (61, 668590), (65, 627446), (74, 551135), (122, 334295), (130, 313723), (139, 293410), (185, 220454), (278, 146705), (305, 133718), (370, 110227), (481, 84790), (610, 66859), (695, 58682), (793, 51430), (962, 42395), (1390, 29341), (1586, 25715), (1807, 22570), (2257, 18070), (2405, 16958), (3614, 11285), (3965, 10286), (4514, 9035), (4810, 8479), (5143, 7930)]