11561420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{839}}^1$

素因数の和:914

約数の個数: 48

約数和(自身を含む): 26671680

約数和(自身を除く): 15110260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 839, 1060, 1378, 1678, 2756, 3356, 3445, 4195, 6890, 8390, 10907, 13780, 16780, 21814, 43628, 44467, 54535, 88934, 109070, 177868, 218140, 222335, 444670, 578071, 889340, 1156142, 2312284, 2890355, 5780710, 11561420]

約数ペア:

[(1, 11561420), (2, 5780710), (4, 2890355), (5, 2312284), (10, 1156142), (13, 889340), (20, 578071), (26, 444670), (52, 222335), (53, 218140), (65, 177868), (106, 109070), (130, 88934), (212, 54535), (260, 44467), (265, 43628), (530, 21814), (689, 16780), (839, 13780), (1060, 10907), (1378, 8390), (1678, 6890), (2756, 4195), (3356, 3445)]