31115280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{18521}}^1$

素因数の和:18544

約数の個数: 80

約数和(自身を含む): 110242944

約数和(自身を除く): 79127664

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 18521, 37042, 55563, 74084, 92605, 111126, 129647, 148168, 185210, 222252, 259294, 277815, 296336, 370420, 388941, 444504, 518588, 555630, 648235, 740840, 777882, 889008, 1037176, 1111260, 1296470, 1481680, 1555764, 1944705, 2074352, 2222520, 2592940, 3111528, 3889410, 4445040, 5185880, 6223056, 7778820, 10371760, 15557640, 31115280]

約数ペア:

[(1, 31115280), (2, 15557640), (3, 10371760), (4, 7778820), (5, 6223056), (6, 5185880), (7, 4445040), (8, 3889410), (10, 3111528), (12, 2592940), (14, 2222520), (15, 2074352), (16, 1944705), (20, 1555764), (21, 1481680), (24, 1296470), (28, 1111260), (30, 1037176), (35, 889008), (40, 777882), (42, 740840), (48, 648235), (56, 555630), (60, 518588), (70, 444504), (80, 388941), (84, 370420), (105, 296336), (112, 277815), (120, 259294), (140, 222252), (168, 185210), (210, 148168), (240, 129647), (280, 111126), (336, 92605), (420, 74084), (560, 55563), (840, 37042), (1680, 18521)]