20865648

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{167}}^1$

素因数の和:334

約数の個数: 80

約数和(自身を含む): 57496320

約数和(自身を除く): 36630672

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 114, 137, 152, 167, 228, 274, 304, 334, 411, 456, 501, 548, 668, 822, 912, 1002, 1096, 1336, 1644, 2004, 2192, 2603, 2672, 3173, 3288, 4008, 5206, 6346, 6576, 7809, 8016, 9519, 10412, 12692, 15618, 19038, 20824, 22879, 25384, 31236, 38076, 41648, 45758, 50768, 62472, 68637, 76152, 91516, 124944, 137274, 152304, 183032, 274548, 366064, 434701, 549096, 869402, 1098192, 1304103, 1738804, 2608206, 3477608, 5216412, 6955216, 10432824, 20865648]

約数ペア:

[(1, 20865648), (2, 10432824), (3, 6955216), (4, 5216412), (6, 3477608), (8, 2608206), (12, 1738804), (16, 1304103), (19, 1098192), (24, 869402), (38, 549096), (48, 434701), (57, 366064), (76, 274548), (114, 183032), (137, 152304), (152, 137274), (167, 124944), (228, 91516), (274, 76152), (304, 68637), (334, 62472), (411, 50768), (456, 45758), (501, 41648), (548, 38076), (668, 31236), (822, 25384), (912, 22879), (1002, 20824), (1096, 19038), (1336, 15618), (1644, 12692), (2004, 10412), (2192, 9519), (2603, 8016), (2672, 7809), (3173, 6576), (3288, 6346), (4008, 5206)]