31307240

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:374

約数の個数: 64

約数和(自身を含む): 73774800

約数和(自身を除く): 42467560

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 137, 145, 197, 232, 274, 290, 394, 548, 580, 685, 788, 985, 1096, 1160, 1370, 1576, 1970, 2740, 3940, 3973, 5480, 5713, 7880, 7946, 11426, 15892, 19865, 22852, 26989, 28565, 31784, 39730, 45704, 53978, 57130, 79460, 107956, 114260, 134945, 158920, 215912, 228520, 269890, 539780, 782681, 1079560, 1565362, 3130724, 3913405, 6261448, 7826810, 15653620, 31307240]

約数ペア:

[(1, 31307240), (2, 15653620), (4, 7826810), (5, 6261448), (8, 3913405), (10, 3130724), (20, 1565362), (29, 1079560), (40, 782681), (58, 539780), (116, 269890), (137, 228520), (145, 215912), (197, 158920), (232, 134945), (274, 114260), (290, 107956), (394, 79460), (548, 57130), (580, 53978), (685, 45704), (788, 39730), (985, 31784), (1096, 28565), (1160, 26989), (1370, 22852), (1576, 19865), (1970, 15892), (2740, 11426), (3940, 7946), (3973, 7880), (5480, 5713)]