19807264

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{487}}^1$

素因数の和:569

約数の個数: 48

約数和(自身を含む): 41319936

約数和(自身を除く): 21512672

約数列:

[1, 2, 4, 8, 16, 31, 32, 41, 62, 82, 124, 164, 248, 328, 487, 496, 656, 974, 992, 1271, 1312, 1948, 2542, 3896, 5084, 7792, 10168, 15097, 15584, 19967, 20336, 30194, 39934, 40672, 60388, 79868, 120776, 159736, 241552, 319472, 483104, 618977, 638944, 1237954, 2475908, 4951816, 9903632, 19807264]

約数ペア:

[(1, 19807264), (2, 9903632), (4, 4951816), (8, 2475908), (16, 1237954), (31, 638944), (32, 618977), (41, 483104), (62, 319472), (82, 241552), (124, 159736), (164, 120776), (248, 79868), (328, 60388), (487, 40672), (496, 39934), (656, 30194), (974, 20336), (992, 19967), (1271, 15584), (1312, 15097), (1948, 10168), (2542, 7792), (3896, 5084)]