254940

素因数分解:

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

素因数の和:626

約数の個数: 48

約数和(自身を含む): 817152

約数和(自身を除く): 562212

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, 1214, 1821, 2428, 3035, 3642, 4249, 6070, 7284, 8498, 9105, 12140, 12747, 16996, 18210, 21245, 25494, 36420, 42490, 50988, 63735, 84980, 127470, 254940]

約数ペア:

[(1, 254940), (2, 127470), (3, 84980), (4, 63735), (5, 50988), (6, 42490), (7, 36420), (10, 25494), (12, 21245), (14, 18210), (15, 16996), (20, 12747), (21, 12140), (28, 9105), (30, 8498), (35, 7284), (42, 6070), (60, 4249), (70, 3642), (84, 3035), (105, 2428), (140, 1821), (210, 1214), (420, 607)]