209920620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{38447}}^1$

素因数の和:38479

約数の個数: 96

約数和(自身を含む): 723437568

約数和(自身を除く): 513516948

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5460, 38447, 76894, 115341, 153788, 192235, 230682, 269129, 384470, 461364, 499811, 538258, 576705, 768940, 807387, 999622, 1076516, 1153410, 1345645, 1499433, 1614774, 1999244, 2306820, 2499055, 2691290, 2998866, 3229548, 3498677, 4036935, 4998110, 5382580, 5997732, 6997354, 7497165, 8073870, 9996220, 10496031, 13994708, 14994330, 16147740, 17493385, 20992062, 29988660, 34986770, 41984124, 52480155, 69973540, 104960310, 209920620]

約数ペア:

[(1, 209920620), (2, 104960310), (3, 69973540), (4, 52480155), (5, 41984124), (6, 34986770), (7, 29988660), (10, 20992062), (12, 17493385), (13, 16147740), (14, 14994330), (15, 13994708), (20, 10496031), (21, 9996220), (26, 8073870), (28, 7497165), (30, 6997354), (35, 5997732), (39, 5382580), (42, 4998110), (52, 4036935), (60, 3498677), (65, 3229548), (70, 2998866), (78, 2691290), (84, 2499055), (91, 2306820), (105, 1999244), (130, 1614774), (140, 1499433), (156, 1345645), (182, 1153410), (195, 1076516), (210, 999622), (260, 807387), (273, 768940), (364, 576705), (390, 538258), (420, 499811), (455, 461364), (546, 384470), (780, 269129), (910, 230682), (1092, 192235), (1365, 153788), (1820, 115341), (2730, 76894), (5460, 38447)]