19561760

素因数分解:

$2^5\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1187}}^1$

素因数の和:1305

約数の個数: 48

約数和(自身を含む): 46702656

約数和(自身を除く): 27140896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 103, 160, 206, 412, 515, 824, 1030, 1187, 1648, 2060, 2374, 3296, 4120, 4748, 5935, 8240, 9496, 11870, 16480, 18992, 23740, 37984, 47480, 94960, 122261, 189920, 244522, 489044, 611305, 978088, 1222610, 1956176, 2445220, 3912352, 4890440, 9780880, 19561760]

約数ペア:

[(1, 19561760), (2, 9780880), (4, 4890440), (5, 3912352), (8, 2445220), (10, 1956176), (16, 1222610), (20, 978088), (32, 611305), (40, 489044), (80, 244522), (103, 189920), (160, 122261), (206, 94960), (412, 47480), (515, 37984), (824, 23740), (1030, 18992), (1187, 16480), (1648, 11870), (2060, 9496), (2374, 8240), (3296, 5935), (4120, 4748)]