20423630

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{191}}^1$

素因数の和:269

約数の個数: 48

約数和(自身を含む): 40317696

約数和(自身を除く): 19894066

約数列:

[1, 2, 5, 10, 17, 34, 37, 74, 85, 170, 185, 191, 289, 370, 382, 578, 629, 955, 1258, 1445, 1910, 2890, 3145, 3247, 6290, 6494, 7067, 10693, 14134, 16235, 21386, 32470, 35335, 53465, 55199, 70670, 106930, 110398, 120139, 240278, 275995, 551990, 600695, 1201390, 2042363, 4084726, 10211815, 20423630]

約数ペア:

[(1, 20423630), (2, 10211815), (5, 4084726), (10, 2042363), (17, 1201390), (34, 600695), (37, 551990), (74, 275995), (85, 240278), (170, 120139), (185, 110398), (191, 106930), (289, 70670), (370, 55199), (382, 53465), (578, 35335), (629, 32470), (955, 21386), (1258, 16235), (1445, 14134), (1910, 10693), (2890, 7067), (3145, 6494), (3247, 6290)]