18661020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{283}}^1$

素因数の和:459

約数の個数: 96

約数和(自身を含む): 60307968

約数和(自身を除く): 41646948

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, 157, 210, 283, 314, 420, 471, 566, 628, 785, 849, 942, 1099, 1132, 1415, 1570, 1698, 1884, 1981, 2198, 2355, 2830, 3140, 3297, 3396, 3962, 4245, 4396, 4710, 5495, 5660, 5943, 6594, 7924, 8490, 9420, 9905, 10990, 11886, 13188, 16485, 16980, 19810, 21980, 23772, 29715, 32970, 39620, 44431, 59430, 65940, 88862, 118860, 133293, 177724, 222155, 266586, 311017, 444310, 533172, 622034, 666465, 888620, 933051, 1244068, 1332930, 1555085, 1866102, 2665860, 3110170, 3732204, 4665255, 6220340, 9330510, 18661020]

約数ペア:

[(1, 18661020), (2, 9330510), (3, 6220340), (4, 4665255), (5, 3732204), (6, 3110170), (7, 2665860), (10, 1866102), (12, 1555085), (14, 1332930), (15, 1244068), (20, 933051), (21, 888620), (28, 666465), (30, 622034), (35, 533172), (42, 444310), (60, 311017), (70, 266586), (84, 222155), (105, 177724), (140, 133293), (157, 118860), (210, 88862), (283, 65940), (314, 59430), (420, 44431), (471, 39620), (566, 32970), (628, 29715), (785, 23772), (849, 21980), (942, 19810), (1099, 16980), (1132, 16485), (1415, 13188), (1570, 11886), (1698, 10990), (1884, 9905), (1981, 9420), (2198, 8490), (2355, 7924), (2830, 6594), (3140, 5943), (3297, 5660), (3396, 5495), (3962, 4710), (4245, 4396)]