161459964

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{181}}^1\times {\mathrm{349}}^1$

素因数の和:611

約数の個数: 72

約数和(自身を含む): 417362400

約数和(自身を除く): 255902436

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 181, 213, 284, 349, 362, 426, 543, 639, 698, 724, 852, 1047, 1086, 1278, 1396, 1629, 2094, 2172, 2556, 3141, 3258, 4188, 6282, 6516, 12564, 12851, 24779, 25702, 38553, 49558, 51404, 63169, 74337, 77106, 99116, 115659, 126338, 148674, 154212, 189507, 223011, 231318, 252676, 297348, 379014, 446022, 462636, 568521, 758028, 892044, 1137042, 2274084, 4484999, 8969998, 13454997, 17939996, 26909994, 40364991, 53819988, 80729982, 161459964]

約数ペア:

[(1, 161459964), (2, 80729982), (3, 53819988), (4, 40364991), (6, 26909994), (9, 17939996), (12, 13454997), (18, 8969998), (36, 4484999), (71, 2274084), (142, 1137042), (181, 892044), (213, 758028), (284, 568521), (349, 462636), (362, 446022), (426, 379014), (543, 297348), (639, 252676), (698, 231318), (724, 223011), (852, 189507), (1047, 154212), (1086, 148674), (1278, 126338), (1396, 115659), (1629, 99116), (2094, 77106), (2172, 74337), (2556, 63169), (3141, 51404), (3258, 49558), (4188, 38553), (6282, 25702), (6516, 24779), (12564, 12851)]