2000601980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1\times {\mathrm{281}}^1$

素因数の和:639

約数の個数: 96

約数和(自身を含む): 4596419520

約数和(自身を除く): 2595817540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 197, 260, 278, 281, 394, 556, 562, 695, 788, 985, 1124, 1390, 1405, 1807, 1970, 2561, 2780, 2810, 3614, 3653, 3940, 5122, 5620, 7228, 7306, 9035, 10244, 12805, 14612, 18070, 18265, 25610, 27383, 36140, 36530, 39059, 51220, 54766, 55357, 73060, 78118, 109532, 110714, 136915, 156236, 195295, 221428, 273830, 276785, 355979, 390590, 507767, 547660, 553570, 711958, 719641, 781180, 1015534, 1107140, 1423916, 1439282, 1779895, 2031068, 2538835, 2878564, 3559790, 3598205, 5077670, 7119580, 7196410, 7694623, 10155340, 14392820, 15389246, 30778492, 38473115, 76946230, 100030099, 153892460, 200060198, 400120396, 500150495, 1000300990, 2000601980]

約数ペア:

[(1, 2000601980), (2, 1000300990), (4, 500150495), (5, 400120396), (10, 200060198), (13, 153892460), (20, 100030099), (26, 76946230), (52, 38473115), (65, 30778492), (130, 15389246), (139, 14392820), (197, 10155340), (260, 7694623), (278, 7196410), (281, 7119580), (394, 5077670), (556, 3598205), (562, 3559790), (695, 2878564), (788, 2538835), (985, 2031068), (1124, 1779895), (1390, 1439282), (1405, 1423916), (1807, 1107140), (1970, 1015534), (2561, 781180), (2780, 719641), (2810, 711958), (3614, 553570), (3653, 547660), (3940, 507767), (5122, 390590), (5620, 355979), (7228, 276785), (7306, 273830), (9035, 221428), (10244, 195295), (12805, 156236), (14612, 136915), (18070, 110714), (18265, 109532), (25610, 78118), (27383, 73060), (36140, 55357), (36530, 54766), (39059, 51220)]