20439224

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1319}}^1$

素因数の和:1487

約数の個数: 32

約数和(自身を含む): 41580000

約数和(自身を除く): 21140776

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 149, 298, 596, 1192, 1319, 1937, 2638, 3874, 5276, 7748, 10552, 15496, 17147, 34294, 68588, 137176, 196531, 393062, 786124, 1572248, 2554903, 5109806, 10219612, 20439224]

約数ペア:

[(1, 20439224), (2, 10219612), (4, 5109806), (8, 2554903), (13, 1572248), (26, 786124), (52, 393062), (104, 196531), (149, 137176), (298, 68588), (596, 34294), (1192, 17147), (1319, 15496), (1937, 10552), (2638, 7748), (3874, 5276)]