20218576

素因数分解:

$2^4\times 7^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:117

約数の個数: 120

約数和(自身を含む): 50762376

約数和(自身を除く): 30543800

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 37, 41, 49, 56, 68, 74, 82, 98, 112, 119, 136, 148, 164, 196, 238, 259, 272, 287, 296, 328, 392, 476, 518, 574, 592, 629, 656, 697, 784, 833, 952, 1036, 1148, 1258, 1394, 1517, 1666, 1813, 1904, 2009, 2072, 2296, 2516, 2788, 3034, 3332, 3626, 4018, 4144, 4403, 4592, 4879, 5032, 5576, 6068, 6664, 7252, 8036, 8806, 9758, 10064, 10619, 11152, 12136, 13328, 14504, 16072, 17612, 19516, 21238, 24272, 25789, 29008, 30821, 32144, 34153, 35224, 39032, 42476, 51578, 61642, 68306, 70448, 74333, 78064, 84952, 103156, 123284, 136612, 148666, 169904, 180523, 206312, 246568, 273224, 297332, 361046, 412624, 493136, 546448, 594664, 722092, 1189328, 1263661, 1444184, 2527322, 2888368, 5054644, 10109288, 20218576]

約数ペア:

[(1, 20218576), (2, 10109288), (4, 5054644), (7, 2888368), (8, 2527322), (14, 1444184), (16, 1263661), (17, 1189328), (28, 722092), (34, 594664), (37, 546448), (41, 493136), (49, 412624), (56, 361046), (68, 297332), (74, 273224), (82, 246568), (98, 206312), (112, 180523), (119, 169904), (136, 148666), (148, 136612), (164, 123284), (196, 103156), (238, 84952), (259, 78064), (272, 74333), (287, 70448), (296, 68306), (328, 61642), (392, 51578), (476, 42476), (518, 39032), (574, 35224), (592, 34153), (629, 32144), (656, 30821), (697, 29008), (784, 25789), (833, 24272), (952, 21238), (1036, 19516), (1148, 17612), (1258, 16072), (1394, 14504), (1517, 13328), (1666, 12136), (1813, 11152), (1904, 10619), (2009, 10064), (2072, 9758), (2296, 8806), (2516, 8036), (2788, 7252), (3034, 6664), (3332, 6068), (3626, 5576), (4018, 5032), (4144, 4879), (4403, 4592)]