289730140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{239}}^1\times {\mathrm{1237}}^1$

素因数の和:1499

約数の個数: 72

約数和(自身を含む): 711305280

約数和(自身を除く): 421575140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 239, 245, 478, 490, 956, 980, 1195, 1237, 1673, 2390, 2474, 3346, 4780, 4948, 6185, 6692, 8365, 8659, 11711, 12370, 16730, 17318, 23422, 24740, 33460, 34636, 43295, 46844, 58555, 60613, 86590, 117110, 121226, 173180, 234220, 242452, 295643, 303065, 591286, 606130, 1182572, 1212260, 1478215, 2069501, 2956430, 4139002, 5912860, 8278004, 10347505, 14486507, 20695010, 28973014, 41390020, 57946028, 72432535, 144865070, 289730140]

約数ペア:

[(1, 289730140), (2, 144865070), (4, 72432535), (5, 57946028), (7, 41390020), (10, 28973014), (14, 20695010), (20, 14486507), (28, 10347505), (35, 8278004), (49, 5912860), (70, 4139002), (98, 2956430), (140, 2069501), (196, 1478215), (239, 1212260), (245, 1182572), (478, 606130), (490, 591286), (956, 303065), (980, 295643), (1195, 242452), (1237, 234220), (1673, 173180), (2390, 121226), (2474, 117110), (3346, 86590), (4780, 60613), (4948, 58555), (6185, 46844), (6692, 43295), (8365, 34636), (8659, 33460), (11711, 24740), (12370, 23422), (16730, 17318)]