1664260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 3887856

約数和(自身を除く): 2223596

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 173, 185, 260, 346, 370, 481, 692, 740, 865, 962, 1730, 1924, 2249, 2405, 3460, 4498, 4810, 6401, 8996, 9620, 11245, 12802, 22490, 25604, 32005, 44980, 64010, 83213, 128020, 166426, 332852, 416065, 832130, 1664260]

約数ペア:

[(1, 1664260), (2, 832130), (4, 416065), (5, 332852), (10, 166426), (13, 128020), (20, 83213), (26, 64010), (37, 44980), (52, 32005), (65, 25604), (74, 22490), (130, 12802), (148, 11245), (173, 9620), (185, 8996), (260, 6401), (346, 4810), (370, 4498), (481, 3460), (692, 2405), (740, 2249), (865, 1924), (962, 1730)]