205880920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{23719}}^1$

素因数の和:23768

約数の個数: 64

約数和(自身を含む): 546508800

約数和(自身を除く): 340627880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 23719, 47438, 94876, 118595, 166033, 189752, 237190, 332066, 474380, 664132, 735289, 830165, 948760, 1328264, 1470578, 1660330, 2941156, 3320660, 3676445, 5147023, 5882312, 6641320, 7352890, 10294046, 14705780, 20588092, 25735115, 29411560, 41176184, 51470230, 102940460, 205880920]

約数ペア:

[(1, 205880920), (2, 102940460), (4, 51470230), (5, 41176184), (7, 29411560), (8, 25735115), (10, 20588092), (14, 14705780), (20, 10294046), (28, 7352890), (31, 6641320), (35, 5882312), (40, 5147023), (56, 3676445), (62, 3320660), (70, 2941156), (124, 1660330), (140, 1470578), (155, 1328264), (217, 948760), (248, 830165), (280, 735289), (310, 664132), (434, 474380), (620, 332066), (868, 237190), (1085, 189752), (1240, 166033), (1736, 118595), (2170, 94876), (4340, 47438), (8680, 23719)]