281017980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{647}}^1$

素因数の和:808

約数の個数: 144

約数和(自身を含む): 905748480

約数和(自身を除く): 624730500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 127, 171, 180, 190, 228, 254, 285, 342, 380, 381, 508, 570, 635, 647, 684, 762, 855, 1140, 1143, 1270, 1294, 1524, 1710, 1905, 1941, 2286, 2413, 2540, 2588, 3235, 3420, 3810, 3882, 4572, 4826, 5715, 5823, 6470, 7239, 7620, 7764, 9652, 9705, 11430, 11646, 12065, 12293, 12940, 14478, 19410, 21717, 22860, 23292, 24130, 24586, 28956, 29115, 36195, 36879, 38820, 43434, 48260, 49172, 58230, 61465, 72390, 73758, 82169, 86868, 108585, 110637, 116460, 122930, 144780, 147516, 164338, 184395, 217170, 221274, 245860, 246507, 328676, 368790, 410845, 434340, 442548, 493014, 553185, 737580, 739521, 821690, 986028, 1106370, 1232535, 1479042, 1561211, 1643380, 2212740, 2465070, 2958084, 3122422, 3697605, 4683633, 4930140, 6244844, 7395210, 7806055, 9367266, 14050899, 14790420, 15612110, 18734532, 23418165, 28101798, 31224220, 46836330, 56203596, 70254495, 93672660, 140508990, 281017980]

約数ペア:

[(1, 281017980), (2, 140508990), (3, 93672660), (4, 70254495), (5, 56203596), (6, 46836330), (9, 31224220), (10, 28101798), (12, 23418165), (15, 18734532), (18, 15612110), (19, 14790420), (20, 14050899), (30, 9367266), (36, 7806055), (38, 7395210), (45, 6244844), (57, 4930140), (60, 4683633), (76, 3697605), (90, 3122422), (95, 2958084), (114, 2465070), (127, 2212740), (171, 1643380), (180, 1561211), (190, 1479042), (228, 1232535), (254, 1106370), (285, 986028), (342, 821690), (380, 739521), (381, 737580), (508, 553185), (570, 493014), (635, 442548), (647, 434340), (684, 410845), (762, 368790), (855, 328676), (1140, 246507), (1143, 245860), (1270, 221274), (1294, 217170), (1524, 184395), (1710, 164338), (1905, 147516), (1941, 144780), (2286, 122930), (2413, 116460), (2540, 110637), (2588, 108585), (3235, 86868), (3420, 82169), (3810, 73758), (3882, 72390), (4572, 61465), (4826, 58230), (5715, 49172), (5823, 48260), (6470, 43434), (7239, 38820), (7620, 36879), (7764, 36195), (9652, 29115), (9705, 28956), (11430, 24586), (11646, 24130), (12065, 23292), (12293, 22860), (12940, 21717), (14478, 19410)]