1213165720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{619}}^1\times {\mathrm{3769}}^1$

素因数の和:4412

約数の個数: 64

約数和(自身を含む): 2945124000

約数和(自身を除く): 1731958280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 619, 1238, 2476, 3095, 3769, 4952, 6190, 7538, 8047, 12380, 15076, 16094, 18845, 24760, 30152, 32188, 37690, 40235, 48997, 64376, 75380, 80470, 97994, 150760, 160940, 195988, 244985, 321880, 391976, 489970, 979940, 1959880, 2333011, 4666022, 9332044, 11665055, 18664088, 23330110, 30329143, 46660220, 60658286, 93320440, 121316572, 151645715, 242633144, 303291430, 606582860, 1213165720]

約数ペア:

[(1, 1213165720), (2, 606582860), (4, 303291430), (5, 242633144), (8, 151645715), (10, 121316572), (13, 93320440), (20, 60658286), (26, 46660220), (40, 30329143), (52, 23330110), (65, 18664088), (104, 11665055), (130, 9332044), (260, 4666022), (520, 2333011), (619, 1959880), (1238, 979940), (2476, 489970), (3095, 391976), (3769, 321880), (4952, 244985), (6190, 195988), (7538, 160940), (8047, 150760), (12380, 97994), (15076, 80470), (16094, 75380), (18845, 64376), (24760, 48997), (30152, 40235), (32188, 37690)]