15660440

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:236

約数の個数: 64

約数和(自身を含む): 36741600

約数和(自身を除く): 21081160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 83, 89, 106, 166, 178, 212, 265, 332, 356, 415, 424, 445, 530, 664, 712, 830, 890, 1060, 1660, 1780, 2120, 3320, 3560, 4399, 4717, 7387, 8798, 9434, 14774, 17596, 18868, 21995, 23585, 29548, 35192, 36935, 37736, 43990, 47170, 59096, 73870, 87980, 94340, 147740, 175960, 188680, 295480, 391511, 783022, 1566044, 1957555, 3132088, 3915110, 7830220, 15660440]

約数ペア:

[(1, 15660440), (2, 7830220), (4, 3915110), (5, 3132088), (8, 1957555), (10, 1566044), (20, 783022), (40, 391511), (53, 295480), (83, 188680), (89, 175960), (106, 147740), (166, 94340), (178, 87980), (212, 73870), (265, 59096), (332, 47170), (356, 43990), (415, 37736), (424, 36935), (445, 35192), (530, 29548), (664, 23585), (712, 21995), (830, 18868), (890, 17596), (1060, 14774), (1660, 9434), (1780, 8798), (2120, 7387), (3320, 4717), (3560, 4399)]