1721215040

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{88177}}^1$

素因数の和:88255

約数の個数: 56

約数和(自身を含む): 4165881432

約数和(自身を除く): 2444666392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 160, 244, 305, 320, 488, 610, 976, 1220, 1952, 2440, 3904, 4880, 9760, 19520, 88177, 176354, 352708, 440885, 705416, 881770, 1410832, 1763540, 2821664, 3527080, 5378797, 5643328, 7054160, 10757594, 14108320, 21515188, 26893985, 28216640, 43030376, 53787970, 86060752, 107575940, 172121504, 215151880, 344243008, 430303760, 860607520, 1721215040]

約数ペア:

[(1, 1721215040), (2, 860607520), (4, 430303760), (5, 344243008), (8, 215151880), (10, 172121504), (16, 107575940), (20, 86060752), (32, 53787970), (40, 43030376), (61, 28216640), (64, 26893985), (80, 21515188), (122, 14108320), (160, 10757594), (244, 7054160), (305, 5643328), (320, 5378797), (488, 3527080), (610, 2821664), (976, 1763540), (1220, 1410832), (1952, 881770), (2440, 705416), (3904, 440885), (4880, 352708), (9760, 176354), (19520, 88177)]