23171620

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 50542128

約数和(自身を除く): 27370508

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 173, 181, 185, 346, 362, 370, 692, 724, 740, 865, 905, 1730, 1810, 3460, 3620, 6401, 6697, 12802, 13394, 25604, 26788, 31313, 32005, 33485, 62626, 64010, 66970, 125252, 128020, 133940, 156565, 313130, 626260, 1158581, 2317162, 4634324, 5792905, 11585810, 23171620]

約数ペア:

[(1, 23171620), (2, 11585810), (4, 5792905), (5, 4634324), (10, 2317162), (20, 1158581), (37, 626260), (74, 313130), (148, 156565), (173, 133940), (181, 128020), (185, 125252), (346, 66970), (362, 64010), (370, 62626), (692, 33485), (724, 32005), (740, 31313), (865, 26788), (905, 25604), (1730, 13394), (1810, 12802), (3460, 6697), (3620, 6401)]