1278890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:206

約数の個数: 32

約数和(自身を含む): 2488320

約数和(自身を除く): 1209430

約数列:

[1, 2, 5, 10, 19, 38, 53, 95, 106, 127, 190, 254, 265, 530, 635, 1007, 1270, 2014, 2413, 4826, 5035, 6731, 10070, 12065, 13462, 24130, 33655, 67310, 127889, 255778, 639445, 1278890]

約数ペア:

[(1, 1278890), (2, 639445), (5, 255778), (10, 127889), (19, 67310), (38, 33655), (53, 24130), (95, 13462), (106, 12065), (127, 10070), (190, 6731), (254, 5035), (265, 4826), (530, 2413), (635, 2014), (1007, 1270)]