278139540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{607}}^1\times {\mathrm{1091}}^1$

素因数の和:1717

約数の個数: 96

約数和(自身を含む): 892329984

約数和(自身を除く): 614190444

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 607, 1091, 1214, 1821, 2182, 2428, 3035, 3273, 3642, 4249, 4364, 5455, 6070, 6546, 7284, 7637, 8498, 9105, 10910, 12140, 12747, 13092, 15274, 16365, 16996, 18210, 21245, 21820, 22911, 25494, 30548, 32730, 36420, 38185, 42490, 45822, 50988, 63735, 65460, 76370, 84980, 91644, 114555, 127470, 152740, 229110, 254940, 458220, 662237, 1324474, 1986711, 2648948, 3311185, 3973422, 4635659, 6622370, 7946844, 9271318, 9933555, 13244740, 13906977, 18542636, 19867110, 23178295, 27813954, 39734220, 46356590, 55627908, 69534885, 92713180, 139069770, 278139540]

約数ペア:

[(1, 278139540), (2, 139069770), (3, 92713180), (4, 69534885), (5, 55627908), (6, 46356590), (7, 39734220), (10, 27813954), (12, 23178295), (14, 19867110), (15, 18542636), (20, 13906977), (21, 13244740), (28, 9933555), (30, 9271318), (35, 7946844), (42, 6622370), (60, 4635659), (70, 3973422), (84, 3311185), (105, 2648948), (140, 1986711), (210, 1324474), (420, 662237), (607, 458220), (1091, 254940), (1214, 229110), (1821, 152740), (2182, 127470), (2428, 114555), (3035, 91644), (3273, 84980), (3642, 76370), (4249, 65460), (4364, 63735), (5455, 50988), (6070, 45822), (6546, 42490), (7284, 38185), (7637, 36420), (8498, 32730), (9105, 30548), (10910, 25494), (12140, 22911), (12747, 21820), (13092, 21245), (15274, 18210), (16365, 16996)]