15804620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{683}}^1$

素因数の和:794

約数の個数: 48

約数和(自身を含む): 36197280

約数和(自身を除く): 20392660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 683, 890, 1157, 1366, 1780, 2314, 2732, 3415, 4628, 5785, 6830, 8879, 11570, 13660, 17758, 23140, 35516, 44395, 60787, 88790, 121574, 177580, 243148, 303935, 607870, 790231, 1215740, 1580462, 3160924, 3951155, 7902310, 15804620]

約数ペア:

[(1, 15804620), (2, 7902310), (4, 3951155), (5, 3160924), (10, 1580462), (13, 1215740), (20, 790231), (26, 607870), (52, 303935), (65, 243148), (89, 177580), (130, 121574), (178, 88790), (260, 60787), (356, 44395), (445, 35516), (683, 23140), (890, 17758), (1157, 13660), (1366, 11570), (1780, 8879), (2314, 6830), (2732, 5785), (3415, 4628)]