40020890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{199}}^1$

素因数の和:256

約数の個数: 96

約数和(自身を含む): 94867200

約数和(自身を除く): 54846310

約数列:

[1, 2, 5, 7, 10, 13, 14, 17, 26, 34, 35, 65, 70, 85, 91, 119, 130, 169, 170, 182, 199, 221, 238, 338, 398, 442, 455, 595, 845, 910, 995, 1105, 1183, 1190, 1393, 1547, 1690, 1990, 2210, 2366, 2587, 2786, 2873, 3094, 3383, 5174, 5746, 5915, 6766, 6965, 7735, 11830, 12935, 13930, 14365, 15470, 16915, 18109, 20111, 23681, 25870, 28730, 33631, 33830, 36218, 40222, 43979, 47362, 67262, 87958, 90545, 100555, 118405, 168155, 181090, 201110, 219895, 235417, 236810, 307853, 336310, 439790, 470834, 571727, 615706, 1143454, 1177085, 1539265, 2354170, 2858635, 3078530, 4002089, 5717270, 8004178, 20010445, 40020890]

約数ペア:

[(1, 40020890), (2, 20010445), (5, 8004178), (7, 5717270), (10, 4002089), (13, 3078530), (14, 2858635), (17, 2354170), (26, 1539265), (34, 1177085), (35, 1143454), (65, 615706), (70, 571727), (85, 470834), (91, 439790), (119, 336310), (130, 307853), (169, 236810), (170, 235417), (182, 219895), (199, 201110), (221, 181090), (238, 168155), (338, 118405), (398, 100555), (442, 90545), (455, 87958), (595, 67262), (845, 47362), (910, 43979), (995, 40222), (1105, 36218), (1183, 33830), (1190, 33631), (1393, 28730), (1547, 25870), (1690, 23681), (1990, 20111), (2210, 18109), (2366, 16915), (2587, 15470), (2786, 14365), (2873, 13930), (3094, 12935), (3383, 11830), (5174, 7735), (5746, 6965), (5915, 6766)]