90356980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{673}}^1$

素因数の和:833

約数の個数: 72

約数和(自身を含む): 222670728

約数和(自身を除く): 132313748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 137, 140, 196, 245, 274, 490, 548, 673, 685, 959, 980, 1346, 1370, 1918, 2692, 2740, 3365, 3836, 4711, 4795, 6713, 6730, 9422, 9590, 13426, 13460, 18844, 19180, 23555, 26852, 32977, 33565, 47110, 65954, 67130, 92201, 94220, 131908, 134260, 164885, 184402, 329770, 368804, 461005, 645407, 659540, 922010, 1290814, 1844020, 2581628, 3227035, 4517849, 6454070, 9035698, 12908140, 18071396, 22589245, 45178490, 90356980]

約数ペア:

[(1, 90356980), (2, 45178490), (4, 22589245), (5, 18071396), (7, 12908140), (10, 9035698), (14, 6454070), (20, 4517849), (28, 3227035), (35, 2581628), (49, 1844020), (70, 1290814), (98, 922010), (137, 659540), (140, 645407), (196, 461005), (245, 368804), (274, 329770), (490, 184402), (548, 164885), (673, 134260), (685, 131908), (959, 94220), (980, 92201), (1346, 67130), (1370, 65954), (1918, 47110), (2692, 33565), (2740, 32977), (3365, 26852), (3836, 23555), (4711, 19180), (4795, 18844), (6713, 13460), (6730, 13426), (9422, 9590)]