978173900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{41}}^2$

素因数の和:153

約数の個数: 162

約数和(自身を含む): 2481140676

約数和(自身を除く): 1502966776

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 25, 41, 44, 46, 50, 55, 82, 92, 100, 110, 115, 164, 205, 220, 230, 253, 275, 410, 451, 460, 506, 529, 550, 575, 820, 902, 943, 1012, 1025, 1058, 1100, 1150, 1265, 1681, 1804, 1886, 2050, 2116, 2255, 2300, 2530, 2645, 3362, 3772, 4100, 4510, 4715, 5060, 5290, 5819, 6325, 6724, 8405, 9020, 9430, 10373, 10580, 11275, 11638, 12650, 13225, 16810, 18491, 18860, 20746, 21689, 22550, 23276, 23575, 25300, 26450, 29095, 33620, 36982, 38663, 41492, 42025, 43378, 45100, 47150, 51865, 52900, 58190, 73964, 77326, 84050, 86756, 92455, 94300, 103730, 108445, 116380, 145475, 154652, 168100, 184910, 193315, 207460, 216890, 238579, 259325, 290950, 369820, 386630, 425293, 433780, 462275, 477158, 518650, 542225, 581900, 773260, 850586, 889249, 924550, 954316, 966575, 1037300, 1084450, 1192895, 1701172, 1778498, 1849100, 1933150, 2126465, 2168900, 2385790, 3556996, 3866300, 4252930, 4446245, 4771580, 5964475, 8505860, 8892490, 9781739, 10632325, 11928950, 17784980, 19563478, 21264650, 22231225, 23857900, 39126956, 42529300, 44462450, 48908695, 88924900, 97817390, 195634780, 244543475, 489086950, 978173900]

約数ペア:

[(1, 978173900), (2, 489086950), (4, 244543475), (5, 195634780), (10, 97817390), (11, 88924900), (20, 48908695), (22, 44462450), (23, 42529300), (25, 39126956), (41, 23857900), (44, 22231225), (46, 21264650), (50, 19563478), (55, 17784980), (82, 11928950), (92, 10632325), (100, 9781739), (110, 8892490), (115, 8505860), (164, 5964475), (205, 4771580), (220, 4446245), (230, 4252930), (253, 3866300), (275, 3556996), (410, 2385790), (451, 2168900), (460, 2126465), (506, 1933150), (529, 1849100), (550, 1778498), (575, 1701172), (820, 1192895), (902, 1084450), (943, 1037300), (1012, 966575), (1025, 954316), (1058, 924550), (1100, 889249), (1150, 850586), (1265, 773260), (1681, 581900), (1804, 542225), (1886, 518650), (2050, 477158), (2116, 462275), (2255, 433780), (2300, 425293), (2530, 386630), (2645, 369820), (3362, 290950), (3772, 259325), (4100, 238579), (4510, 216890), (4715, 207460), (5060, 193315), (5290, 184910), (5819, 168100), (6325, 154652), (6724, 145475), (8405, 116380), (9020, 108445), (9430, 103730), (10373, 94300), (10580, 92455), (11275, 86756), (11638, 84050), (12650, 77326), (13225, 73964), (16810, 58190), (18491, 52900), (18860, 51865), (20746, 47150), (21689, 45100), (22550, 43378), (23276, 42025), (23575, 41492), (25300, 38663), (26450, 36982), (29095, 33620)]