1289022020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{450707}}^1$

素因数の和:450740

約数の個数: 48

約数和(自身を含む): 3180195648

約数和(自身を除く): 1891173628

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 450707, 901414, 1802828, 2253535, 4507070, 4957777, 5859191, 9014140, 9915554, 11718382, 19831108, 23436764, 24788885, 29295955, 49577770, 58591910, 64451101, 99155540, 117183820, 128902202, 257804404, 322255505, 644511010, 1289022020]

約数ペア:

[(1, 1289022020), (2, 644511010), (4, 322255505), (5, 257804404), (10, 128902202), (11, 117183820), (13, 99155540), (20, 64451101), (22, 58591910), (26, 49577770), (44, 29295955), (52, 24788885), (55, 23436764), (65, 19831108), (110, 11718382), (130, 9915554), (143, 9014140), (220, 5859191), (260, 4957777), (286, 4507070), (572, 2253535), (715, 1802828), (1430, 901414), (2860, 450707)]