18993255152

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{659}}^1\times {\mathrm{839}}^1$

素因数の和:1638

約数の個数: 80

約数和(自身を含む): 39184992000

約数和(自身を除く): 20191736848

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 113, 152, 226, 304, 452, 659, 839, 904, 1318, 1678, 1808, 2147, 2636, 3356, 4294, 5272, 6712, 8588, 10544, 12521, 13424, 15941, 17176, 25042, 31882, 34352, 50084, 63764, 74467, 94807, 100168, 127528, 148934, 189614, 200336, 255056, 297868, 379228, 552901, 595736, 758456, 1105802, 1191472, 1414873, 1516912, 1801333, 2211604, 2829746, 3602666, 4423208, 5659492, 7205332, 8846416, 10505119, 11318984, 14410664, 21010238, 22637968, 28821328, 42020476, 62477813, 84040952, 124955626, 168081904, 249911252, 499822504, 999645008, 1187078447, 2374156894, 4748313788, 9496627576, 18993255152]

約数ペア:

[(1, 18993255152), (2, 9496627576), (4, 4748313788), (8, 2374156894), (16, 1187078447), (19, 999645008), (38, 499822504), (76, 249911252), (113, 168081904), (152, 124955626), (226, 84040952), (304, 62477813), (452, 42020476), (659, 28821328), (839, 22637968), (904, 21010238), (1318, 14410664), (1678, 11318984), (1808, 10505119), (2147, 8846416), (2636, 7205332), (3356, 5659492), (4294, 4423208), (5272, 3602666), (6712, 2829746), (8588, 2211604), (10544, 1801333), (12521, 1516912), (13424, 1414873), (15941, 1191472), (17176, 1105802), (25042, 758456), (31882, 595736), (34352, 552901), (50084, 379228), (63764, 297868), (74467, 255056), (94807, 200336), (100168, 189614), (127528, 148934)]