31581225

素因数分解:

$3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:152

約数の個数: 96

約数和(自身を含む): 64579200

約数和(自身を除く): 32997975

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 59, 61, 65, 75, 117, 135, 177, 183, 195, 225, 295, 305, 325, 351, 531, 549, 585, 675, 767, 793, 885, 915, 975, 1475, 1525, 1593, 1647, 1755, 2301, 2379, 2655, 2745, 2925, 3599, 3835, 3965, 4425, 4575, 6903, 7137, 7965, 8235, 8775, 10797, 11505, 11895, 13275, 13725, 17995, 19175, 19825, 20709, 21411, 32391, 34515, 35685, 39825, 41175, 46787, 53985, 57525, 59475, 89975, 97173, 103545, 107055, 140361, 161955, 172575, 178425, 233935, 269925, 421083, 485865, 517725, 535275, 701805, 809775, 1169675, 1263249, 2105415, 2429325, 3509025, 6316245, 10527075, 31581225]

約数ペア:

[(1, 31581225), (3, 10527075), (5, 6316245), (9, 3509025), (13, 2429325), (15, 2105415), (25, 1263249), (27, 1169675), (39, 809775), (45, 701805), (59, 535275), (61, 517725), (65, 485865), (75, 421083), (117, 269925), (135, 233935), (177, 178425), (183, 172575), (195, 161955), (225, 140361), (295, 107055), (305, 103545), (325, 97173), (351, 89975), (531, 59475), (549, 57525), (585, 53985), (675, 46787), (767, 41175), (793, 39825), (885, 35685), (915, 34515), (975, 32391), (1475, 21411), (1525, 20709), (1593, 19825), (1647, 19175), (1755, 17995), (2301, 13725), (2379, 13275), (2655, 11895), (2745, 11505), (2925, 10797), (3599, 8775), (3835, 8235), (3965, 7965), (4425, 7137), (4575, 6903)]