249999345

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:164

約数の個数: 96

約数和(自身を含む): 480453120

約数和(自身を除く): 230453775

約数列:

[1, 3, 5, 9, 15, 27, 31, 41, 45, 47, 93, 123, 135, 141, 155, 205, 235, 279, 369, 423, 465, 615, 705, 837, 961, 1107, 1269, 1271, 1395, 1457, 1845, 1927, 2115, 2883, 3813, 4185, 4371, 4805, 5535, 5781, 6345, 6355, 7285, 8649, 9635, 11439, 13113, 14415, 17343, 19065, 21855, 25947, 28905, 34317, 39339, 39401, 43245, 45167, 52029, 57195, 59737, 65565, 86715, 118203, 129735, 135501, 171585, 179211, 196695, 197005, 225835, 260145, 298685, 354609, 406503, 537633, 591015, 677505, 896055, 1063827, 1219509, 1612899, 1773045, 1851847, 2032515, 2688165, 5319135, 5555541, 6097545, 8064495, 9259235, 16666623, 27777705, 49999869, 83333115, 249999345]

約数ペア:

[(1, 249999345), (3, 83333115), (5, 49999869), (9, 27777705), (15, 16666623), (27, 9259235), (31, 8064495), (41, 6097545), (45, 5555541), (47, 5319135), (93, 2688165), (123, 2032515), (135, 1851847), (141, 1773045), (155, 1612899), (205, 1219509), (235, 1063827), (279, 896055), (369, 677505), (423, 591015), (465, 537633), (615, 406503), (705, 354609), (837, 298685), (961, 260145), (1107, 225835), (1269, 197005), (1271, 196695), (1395, 179211), (1457, 171585), (1845, 135501), (1927, 129735), (2115, 118203), (2883, 86715), (3813, 65565), (4185, 59737), (4371, 57195), (4805, 52029), (5535, 45167), (5781, 43245), (6345, 39401), (6355, 39339), (7285, 34317), (8649, 28905), (9635, 25947), (11439, 21855), (13113, 19065), (14415, 17343)]