217620020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{67}}^1\times {\mathrm{307}}^1$

素因数の和:429

約数の個数: 72

約数和(自身を含む): 486445344

約数和(自身を除く): 268825324

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 67, 92, 115, 134, 230, 268, 307, 335, 460, 529, 614, 670, 1058, 1228, 1340, 1535, 1541, 2116, 2645, 3070, 3082, 5290, 6140, 6164, 7061, 7705, 10580, 14122, 15410, 20569, 28244, 30820, 35305, 35443, 41138, 70610, 70886, 82276, 102845, 141220, 141772, 162403, 177215, 205690, 324806, 354430, 411380, 473087, 649612, 708860, 812015, 946174, 1624030, 1892348, 2365435, 3248060, 4730870, 9461740, 10881001, 21762002, 43524004, 54405005, 108810010, 217620020]

約数ペア:

[(1, 217620020), (2, 108810010), (4, 54405005), (5, 43524004), (10, 21762002), (20, 10881001), (23, 9461740), (46, 4730870), (67, 3248060), (92, 2365435), (115, 1892348), (134, 1624030), (230, 946174), (268, 812015), (307, 708860), (335, 649612), (460, 473087), (529, 411380), (614, 354430), (670, 324806), (1058, 205690), (1228, 177215), (1340, 162403), (1535, 141772), (1541, 141220), (2116, 102845), (2645, 82276), (3070, 70886), (3082, 70610), (5290, 41138), (6140, 35443), (6164, 35305), (7061, 30820), (7705, 28244), (10580, 20569), (14122, 15410)]