19680430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{419}}^1$

素因数の和:505

約数の個数: 64

約数和(自身を含む): 44997120

約数和(自身を除く): 25316690

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 61, 70, 77, 110, 122, 154, 305, 385, 419, 427, 610, 671, 770, 838, 854, 1342, 2095, 2135, 2933, 3355, 4190, 4270, 4609, 4697, 5866, 6710, 9218, 9394, 14665, 23045, 23485, 25559, 29330, 32263, 46090, 46970, 51118, 64526, 127795, 161315, 178913, 255590, 281149, 322630, 357826, 562298, 894565, 1405745, 1789130, 1968043, 2811490, 3936086, 9840215, 19680430]

約数ペア:

[(1, 19680430), (2, 9840215), (5, 3936086), (7, 2811490), (10, 1968043), (11, 1789130), (14, 1405745), (22, 894565), (35, 562298), (55, 357826), (61, 322630), (70, 281149), (77, 255590), (110, 178913), (122, 161315), (154, 127795), (305, 64526), (385, 51118), (419, 46970), (427, 46090), (610, 32263), (671, 29330), (770, 25559), (838, 23485), (854, 23045), (1342, 14665), (2095, 9394), (2135, 9218), (2933, 6710), (3355, 5866), (4190, 4697), (4270, 4609)]