18959640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{22571}}^1$

素因数の和:22592

約数の個数: 64

約数和(自身を含む): 65007360

約数和(自身を除く): 46047720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 22571, 45142, 67713, 90284, 112855, 135426, 157997, 180568, 225710, 270852, 315994, 338565, 451420, 473991, 541704, 631988, 677130, 789985, 902840, 947982, 1263976, 1354260, 1579970, 1895964, 2369955, 2708520, 3159940, 3791928, 4739910, 6319880, 9479820, 18959640]

約数ペア:

[(1, 18959640), (2, 9479820), (3, 6319880), (4, 4739910), (5, 3791928), (6, 3159940), (7, 2708520), (8, 2369955), (10, 1895964), (12, 1579970), (14, 1354260), (15, 1263976), (20, 947982), (21, 902840), (24, 789985), (28, 677130), (30, 631988), (35, 541704), (40, 473991), (42, 451420), (56, 338565), (60, 315994), (70, 270852), (84, 225710), (105, 180568), (120, 157997), (140, 135426), (168, 112855), (210, 90284), (280, 67713), (420, 45142), (840, 22571)]