1999852890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{24481}}^1$

素因数の和:24887

約数の個数: 64

約数和(自身を含む): 5499636480

約数和(自身を除く): 3499783590

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 389, 778, 1167, 1945, 2334, 2723, 3890, 5446, 5835, 8169, 11670, 13615, 16338, 24481, 27230, 40845, 48962, 73443, 81690, 122405, 146886, 171367, 244810, 342734, 367215, 514101, 734430, 856835, 1028202, 1713670, 2570505, 5141010, 9523109, 19046218, 28569327, 47615545, 57138654, 66661763, 95231090, 133323526, 142846635, 199985289, 285693270, 333308815, 399970578, 666617630, 999926445, 1999852890]

約数ペア:

[(1, 1999852890), (2, 999926445), (3, 666617630), (5, 399970578), (6, 333308815), (7, 285693270), (10, 199985289), (14, 142846635), (15, 133323526), (21, 95231090), (30, 66661763), (35, 57138654), (42, 47615545), (70, 28569327), (105, 19046218), (210, 9523109), (389, 5141010), (778, 2570505), (1167, 1713670), (1945, 1028202), (2334, 856835), (2723, 734430), (3890, 514101), (5446, 367215), (5835, 342734), (8169, 244810), (11670, 171367), (13615, 146886), (16338, 122405), (24481, 81690), (27230, 73443), (40845, 48962)]