18003830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:273

約数の個数: 64

約数和(自身を含む): 37920960

約数和(自身を除く): 19917130

約数列:

[1, 2, 5, 10, 13, 19, 26, 37, 38, 65, 74, 95, 130, 185, 190, 197, 247, 370, 394, 481, 494, 703, 962, 985, 1235, 1406, 1970, 2405, 2470, 2561, 3515, 3743, 4810, 5122, 7030, 7289, 7486, 9139, 12805, 14578, 18278, 18715, 25610, 36445, 37430, 45695, 48659, 72890, 91390, 94757, 97318, 138491, 189514, 243295, 276982, 473785, 486590, 692455, 947570, 1384910, 1800383, 3600766, 9001915, 18003830]

約数ペア:

[(1, 18003830), (2, 9001915), (5, 3600766), (10, 1800383), (13, 1384910), (19, 947570), (26, 692455), (37, 486590), (38, 473785), (65, 276982), (74, 243295), (95, 189514), (130, 138491), (185, 97318), (190, 94757), (197, 91390), (247, 72890), (370, 48659), (394, 45695), (481, 37430), (494, 36445), (703, 25610), (962, 18715), (985, 18278), (1235, 14578), (1406, 12805), (1970, 9139), (2405, 7486), (2470, 7289), (2561, 7030), (3515, 5122), (3743, 4810)]