257283390

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1291}}^1$

素因数の和:1394

約数の個数: 128

約数和(自身を含む): 770982912

約数和(自身を除く): 513699522

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 73, 78, 91, 105, 130, 146, 182, 195, 210, 219, 273, 365, 390, 438, 455, 511, 546, 730, 910, 949, 1022, 1095, 1291, 1365, 1533, 1898, 2190, 2555, 2582, 2730, 2847, 3066, 3873, 4745, 5110, 5694, 6455, 6643, 7665, 7746, 9037, 9490, 12910, 13286, 14235, 15330, 16783, 18074, 19365, 19929, 27111, 28470, 33215, 33566, 38730, 39858, 45185, 50349, 54222, 66430, 83915, 90370, 94243, 99645, 100698, 117481, 135555, 167830, 188486, 199290, 234962, 251745, 271110, 282729, 352443, 471215, 503490, 565458, 587405, 659701, 704886, 942430, 1174810, 1225159, 1319402, 1413645, 1762215, 1979103, 2450318, 2827290, 3298505, 3524430, 3675477, 3958206, 6125795, 6597010, 7350954, 8576113, 9895515, 12251590, 17152226, 18377385, 19791030, 25728339, 36754770, 42880565, 51456678, 85761130, 128641695, 257283390]

約数ペア:

[(1, 257283390), (2, 128641695), (3, 85761130), (5, 51456678), (6, 42880565), (7, 36754770), (10, 25728339), (13, 19791030), (14, 18377385), (15, 17152226), (21, 12251590), (26, 9895515), (30, 8576113), (35, 7350954), (39, 6597010), (42, 6125795), (65, 3958206), (70, 3675477), (73, 3524430), (78, 3298505), (91, 2827290), (105, 2450318), (130, 1979103), (146, 1762215), (182, 1413645), (195, 1319402), (210, 1225159), (219, 1174810), (273, 942430), (365, 704886), (390, 659701), (438, 587405), (455, 565458), (511, 503490), (546, 471215), (730, 352443), (910, 282729), (949, 271110), (1022, 251745), (1095, 234962), (1291, 199290), (1365, 188486), (1533, 167830), (1898, 135555), (2190, 117481), (2555, 100698), (2582, 99645), (2730, 94243), (2847, 90370), (3066, 83915), (3873, 66430), (4745, 54222), (5110, 50349), (5694, 45185), (6455, 39858), (6643, 38730), (7665, 33566), (7746, 33215), (9037, 28470), (9490, 27111), (12910, 19929), (13286, 19365), (14235, 18074), (15330, 16783)]