20185030

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:229

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 21286970

約数列:

[1, 2, 5, 10, 19, 23, 31, 38, 46, 62, 95, 115, 149, 155, 190, 230, 298, 310, 437, 589, 713, 745, 874, 1178, 1426, 1490, 2185, 2831, 2945, 3427, 3565, 4370, 4619, 5662, 5890, 6854, 7130, 9238, 13547, 14155, 17135, 23095, 27094, 28310, 34270, 46190, 65113, 67735, 87761, 106237, 130226, 135470, 175522, 212474, 325565, 438805, 531185, 651130, 877610, 1062370, 2018503, 4037006, 10092515, 20185030]

約数ペア:

[(1, 20185030), (2, 10092515), (5, 4037006), (10, 2018503), (19, 1062370), (23, 877610), (31, 651130), (38, 531185), (46, 438805), (62, 325565), (95, 212474), (115, 175522), (149, 135470), (155, 130226), (190, 106237), (230, 87761), (298, 67735), (310, 65113), (437, 46190), (589, 34270), (713, 28310), (745, 27094), (874, 23095), (1178, 17135), (1426, 14155), (1490, 13547), (2185, 9238), (2831, 7130), (2945, 6854), (3427, 5890), (3565, 5662), (4370, 4619)]