65892040

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:406

約数の個数: 64

約数和(自身を含む): 152409600

約数和(自身を除く): 86517560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 89, 166, 178, 223, 332, 356, 415, 445, 446, 664, 712, 830, 890, 892, 1115, 1660, 1780, 1784, 2230, 3320, 3560, 4460, 7387, 8920, 14774, 18509, 19847, 29548, 36935, 37018, 39694, 59096, 73870, 74036, 79388, 92545, 99235, 147740, 148072, 158776, 185090, 198470, 295480, 370180, 396940, 740360, 793880, 1647301, 3294602, 6589204, 8236505, 13178408, 16473010, 32946020, 65892040]

約数ペア:

[(1, 65892040), (2, 32946020), (4, 16473010), (5, 13178408), (8, 8236505), (10, 6589204), (20, 3294602), (40, 1647301), (83, 793880), (89, 740360), (166, 396940), (178, 370180), (223, 295480), (332, 198470), (356, 185090), (415, 158776), (445, 148072), (446, 147740), (664, 99235), (712, 92545), (830, 79388), (890, 74036), (892, 73870), (1115, 59096), (1660, 39694), (1780, 37018), (1784, 36935), (2230, 29548), (3320, 19847), (3560, 18509), (4460, 14774), (7387, 8920)]