28221284

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:157

約数の個数: 96

約数和(自身を含む): 65329152

約数和(自身を除く): 37107868

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 41, 52, 61, 62, 82, 91, 122, 124, 164, 182, 217, 244, 287, 364, 403, 427, 434, 533, 574, 793, 806, 854, 868, 1066, 1148, 1271, 1586, 1612, 1708, 1891, 2132, 2501, 2542, 2821, 3172, 3731, 3782, 5002, 5084, 5551, 5642, 7462, 7564, 8897, 10004, 11102, 11284, 13237, 14924, 16523, 17507, 17794, 22204, 24583, 26474, 32513, 33046, 35014, 35588, 49166, 52948, 65026, 66092, 70028, 77531, 98332, 115661, 130052, 155062, 172081, 227591, 231322, 310124, 344162, 455182, 462644, 542717, 688324, 910364, 1007903, 1085434, 2015806, 2170868, 4031612, 7055321, 14110642, 28221284]

約数ペア:

[(1, 28221284), (2, 14110642), (4, 7055321), (7, 4031612), (13, 2170868), (14, 2015806), (26, 1085434), (28, 1007903), (31, 910364), (41, 688324), (52, 542717), (61, 462644), (62, 455182), (82, 344162), (91, 310124), (122, 231322), (124, 227591), (164, 172081), (182, 155062), (217, 130052), (244, 115661), (287, 98332), (364, 77531), (403, 70028), (427, 66092), (434, 65026), (533, 52948), (574, 49166), (793, 35588), (806, 35014), (854, 33046), (868, 32513), (1066, 26474), (1148, 24583), (1271, 22204), (1586, 17794), (1612, 17507), (1708, 16523), (1891, 14924), (2132, 13237), (2501, 11284), (2542, 11102), (2821, 10004), (3172, 8897), (3731, 7564), (3782, 7462), (5002, 5642), (5084, 5551)]