1919820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{653}}^1$

素因数の和:679

約数の個数: 72

約数和(自身を含む): 6262704

約数和(自身を除く): 4342884

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, 420, 490, 588, 653, 735, 980, 1306, 1470, 1959, 2612, 2940, 3265, 3918, 4571, 6530, 7836, 9142, 9795, 13060, 13713, 18284, 19590, 22855, 27426, 31997, 39180, 45710, 54852, 63994, 68565, 91420, 95991, 127988, 137130, 159985, 191982, 274260, 319970, 383964, 479955, 639940, 959910, 1919820]

約数ペア:

[(1, 1919820), (2, 959910), (3, 639940), (4, 479955), (5, 383964), (6, 319970), (7, 274260), (10, 191982), (12, 159985), (14, 137130), (15, 127988), (20, 95991), (21, 91420), (28, 68565), (30, 63994), (35, 54852), (42, 45710), (49, 39180), (60, 31997), (70, 27426), (84, 22855), (98, 19590), (105, 18284), (140, 13713), (147, 13060), (196, 9795), (210, 9142), (245, 7836), (294, 6530), (420, 4571), (490, 3918), (588, 3265), (653, 2940), (735, 2612), (980, 1959), (1306, 1470)]