1231860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{419}}^1$

素因数の和:445

約数の個数: 72

約数和(自身を含む): 4021920

約数和(自身を除く): 2790060

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 419, 420, 490, 588, 735, 838, 980, 1257, 1470, 1676, 2095, 2514, 2933, 2940, 4190, 5028, 5866, 6285, 8380, 8799, 11732, 12570, 14665, 17598, 20531, 25140, 29330, 35196, 41062, 43995, 58660, 61593, 82124, 87990, 102655, 123186, 175980, 205310, 246372, 307965, 410620, 615930, 1231860]

約数ペア:

[(1, 1231860), (2, 615930), (3, 410620), (4, 307965), (5, 246372), (6, 205310), (7, 175980), (10, 123186), (12, 102655), (14, 87990), (15, 82124), (20, 61593), (21, 58660), (28, 43995), (30, 41062), (35, 35196), (42, 29330), (49, 25140), (60, 20531), (70, 17598), (84, 14665), (98, 12570), (105, 11732), (140, 8799), (147, 8380), (196, 6285), (210, 5866), (245, 5028), (294, 4190), (419, 2940), (420, 2933), (490, 2514), (588, 2095), (735, 1676), (838, 1470), (980, 1257)]