217031290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:272

約数の個数: 96

約数和(自身を含む): 474036624

約数和(自身を除く): 257005334

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 53, 61, 70, 98, 106, 122, 137, 245, 265, 274, 305, 371, 427, 490, 530, 610, 685, 742, 854, 959, 1370, 1855, 1918, 2135, 2597, 2989, 3233, 3710, 4270, 4795, 5194, 5978, 6466, 6713, 7261, 8357, 9590, 12985, 13426, 14522, 14945, 16165, 16714, 22631, 25970, 29890, 32330, 33565, 36305, 41785, 45262, 50827, 58499, 67130, 72610, 83570, 101654, 113155, 116998, 158417, 226310, 254135, 292495, 316834, 355789, 409493, 442921, 508270, 584990, 711578, 792085, 818986, 885842, 1584170, 1778945, 2047465, 2214605, 3100447, 3557890, 4094930, 4429210, 6200894, 15502235, 21703129, 31004470, 43406258, 108515645, 217031290]

約数ペア:

[(1, 217031290), (2, 108515645), (5, 43406258), (7, 31004470), (10, 21703129), (14, 15502235), (35, 6200894), (49, 4429210), (53, 4094930), (61, 3557890), (70, 3100447), (98, 2214605), (106, 2047465), (122, 1778945), (137, 1584170), (245, 885842), (265, 818986), (274, 792085), (305, 711578), (371, 584990), (427, 508270), (490, 442921), (530, 409493), (610, 355789), (685, 316834), (742, 292495), (854, 254135), (959, 226310), (1370, 158417), (1855, 116998), (1918, 113155), (2135, 101654), (2597, 83570), (2989, 72610), (3233, 67130), (3710, 58499), (4270, 50827), (4795, 45262), (5194, 41785), (5978, 36305), (6466, 33565), (6713, 32330), (7261, 29890), (8357, 25970), (9590, 22631), (12985, 16714), (13426, 16165), (14522, 14945)]