20199492045

素因数分解:

$3^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{491}}^1\times {\mathrm{647}}^1$

素因数の和:1312

約数の個数: 80

約数和(自身を含む): 36570745728

約数和(自身を除く): 16371253683

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 157, 405, 471, 491, 647, 785, 1413, 1473, 1941, 2355, 2455, 3235, 4239, 4419, 5823, 7065, 7365, 9705, 12717, 13257, 17469, 21195, 22095, 29115, 39771, 52407, 63585, 66285, 77087, 87345, 101579, 198855, 231261, 262035, 304737, 317677, 385435, 507895, 693783, 914211, 953031, 1156305, 1523685, 1588385, 2081349, 2742633, 2859093, 3468915, 4571055, 4765155, 6244047, 8227899, 8577279, 10406745, 13713165, 14295465, 25731837, 31220235, 41139495, 42886395, 49875289, 128659185, 149625867, 249376445, 448877601, 748129335, 1346632803, 2244388005, 4039898409, 6733164015, 20199492045]

約数ペア:

[(1, 20199492045), (3, 6733164015), (5, 4039898409), (9, 2244388005), (15, 1346632803), (27, 748129335), (45, 448877601), (81, 249376445), (135, 149625867), (157, 128659185), (405, 49875289), (471, 42886395), (491, 41139495), (647, 31220235), (785, 25731837), (1413, 14295465), (1473, 13713165), (1941, 10406745), (2355, 8577279), (2455, 8227899), (3235, 6244047), (4239, 4765155), (4419, 4571055), (5823, 3468915), (7065, 2859093), (7365, 2742633), (9705, 2081349), (12717, 1588385), (13257, 1523685), (17469, 1156305), (21195, 953031), (22095, 914211), (29115, 693783), (39771, 507895), (52407, 385435), (63585, 317677), (66285, 304737), (77087, 262035), (87345, 231261), (101579, 198855)]