1640243385

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1511}}^1$

素因数の和:1596

約数の個数: 128

約数和(自身を含む): 3448811520

約数和(自身を除く): 1808568135

約数列:

[1, 3, 5, 9, 11, 15, 17, 27, 33, 43, 45, 51, 55, 85, 99, 129, 135, 153, 165, 187, 215, 255, 297, 387, 459, 473, 495, 561, 645, 731, 765, 935, 1161, 1419, 1485, 1511, 1683, 1935, 2193, 2295, 2365, 2805, 3655, 4257, 4533, 5049, 5805, 6579, 7095, 7555, 8041, 8415, 10965, 12771, 13599, 16621, 19737, 21285, 22665, 24123, 25245, 25687, 32895, 40205, 40797, 49863, 63855, 64973, 67995, 72369, 77061, 83105, 98685, 120615, 128435, 149589, 194919, 203985, 217107, 231183, 249315, 282557, 324865, 361845, 385305, 448767, 584757, 693549, 714703, 747945, 847671, 974595, 1085535, 1104541, 1155915, 1412785, 1754271, 2144109, 2243835, 2543013, 2923785, 3313623, 3467745, 3573515, 4238355, 5522705, 6432327, 7629039, 8771355, 9940869, 10720545, 12149951, 12715065, 16568115, 19296981, 29822607, 32161635, 36449853, 38145195, 49704345, 60749755, 96484905, 109349559, 149113035, 182249265, 328048677, 546747795, 1640243385]

約数ペア:

[(1, 1640243385), (3, 546747795), (5, 328048677), (9, 182249265), (11, 149113035), (15, 109349559), (17, 96484905), (27, 60749755), (33, 49704345), (43, 38145195), (45, 36449853), (51, 32161635), (55, 29822607), (85, 19296981), (99, 16568115), (129, 12715065), (135, 12149951), (153, 10720545), (165, 9940869), (187, 8771355), (215, 7629039), (255, 6432327), (297, 5522705), (387, 4238355), (459, 3573515), (473, 3467745), (495, 3313623), (561, 2923785), (645, 2543013), (731, 2243835), (765, 2144109), (935, 1754271), (1161, 1412785), (1419, 1155915), (1485, 1104541), (1511, 1085535), (1683, 974595), (1935, 847671), (2193, 747945), (2295, 714703), (2365, 693549), (2805, 584757), (3655, 448767), (4257, 385305), (4533, 361845), (5049, 324865), (5805, 282557), (6579, 249315), (7095, 231183), (7555, 217107), (8041, 203985), (8415, 194919), (10965, 149589), (12771, 128435), (13599, 120615), (16621, 98685), (19737, 83105), (21285, 77061), (22665, 72369), (24123, 67995), (25245, 64973), (25687, 63855), (32895, 49863), (40205, 40797)]