1287208040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{269}}^1$

素因数の和:555

約数の個数: 128

約数和(自身を含む): 3191270400

約数和(自身を除く): 1904062360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 62, 68, 85, 124, 136, 155, 170, 227, 248, 269, 310, 340, 454, 527, 538, 620, 680, 908, 1054, 1076, 1135, 1240, 1345, 1816, 2108, 2152, 2270, 2635, 2690, 3859, 4216, 4540, 4573, 5270, 5380, 7037, 7718, 8339, 9080, 9146, 10540, 10760, 14074, 15436, 16678, 18292, 19295, 21080, 22865, 28148, 30872, 33356, 35185, 36584, 38590, 41695, 45730, 56296, 61063, 66712, 70370, 77180, 83390, 91460, 119629, 122126, 140740, 141763, 154360, 166780, 182920, 239258, 244252, 281480, 283526, 305315, 333560, 478516, 488504, 567052, 598145, 610630, 708815, 957032, 1038071, 1134104, 1196290, 1221260, 1417630, 1892953, 2076142, 2392580, 2442520, 2835260, 3785906, 4152284, 4785160, 5190355, 5670520, 7571812, 8304568, 9464765, 10380710, 15143624, 18929530, 20761420, 32180201, 37859060, 41522840, 64360402, 75718120, 128720804, 160901005, 257441608, 321802010, 643604020, 1287208040]

約数ペア:

[(1, 1287208040), (2, 643604020), (4, 321802010), (5, 257441608), (8, 160901005), (10, 128720804), (17, 75718120), (20, 64360402), (31, 41522840), (34, 37859060), (40, 32180201), (62, 20761420), (68, 18929530), (85, 15143624), (124, 10380710), (136, 9464765), (155, 8304568), (170, 7571812), (227, 5670520), (248, 5190355), (269, 4785160), (310, 4152284), (340, 3785906), (454, 2835260), (527, 2442520), (538, 2392580), (620, 2076142), (680, 1892953), (908, 1417630), (1054, 1221260), (1076, 1196290), (1135, 1134104), (1240, 1038071), (1345, 957032), (1816, 708815), (2108, 610630), (2152, 598145), (2270, 567052), (2635, 488504), (2690, 478516), (3859, 333560), (4216, 305315), (4540, 283526), (4573, 281480), (5270, 244252), (5380, 239258), (7037, 182920), (7718, 166780), (8339, 154360), (9080, 141763), (9146, 140740), (10540, 122126), (10760, 119629), (14074, 91460), (15436, 83390), (16678, 77180), (18292, 70370), (19295, 66712), (21080, 61063), (22865, 56296), (28148, 45730), (30872, 41695), (33356, 38590), (35185, 36584)]