20213072240

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{4142023}}^1$

素因数の和:4142097

約数の個数: 40

約数和(自身を含む): 47765820768

約数和(自身を除く): 27552748528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 4142023, 8284046, 16568092, 20710115, 33136184, 41420230, 66272368, 82840460, 165680920, 252663403, 331361840, 505326806, 1010653612, 1263317015, 2021307224, 2526634030, 4042614448, 5053268060, 10106536120, 20213072240]

約数ペア:

[(1, 20213072240), (2, 10106536120), (4, 5053268060), (5, 4042614448), (8, 2526634030), (10, 2021307224), (16, 1263317015), (20, 1010653612), (40, 505326806), (61, 331361840), (80, 252663403), (122, 165680920), (244, 82840460), (305, 66272368), (488, 41420230), (610, 33136184), (976, 20710115), (1220, 16568092), (2440, 8284046), (4880, 4142023)]