987331380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{499}}^1\times {\mathrm{673}}^1$

素因数の和:1198

約数の個数: 144

約数和(自身を含む): 3227112000

約数和(自身を除く): 2239780620

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 499, 588, 673, 735, 980, 998, 1346, 1470, 1497, 1996, 2019, 2495, 2692, 2940, 2994, 3365, 3493, 4038, 4711, 4990, 5988, 6730, 6986, 7485, 8076, 9422, 9980, 10095, 10479, 13460, 13972, 14133, 14970, 17465, 18844, 20190, 20958, 23555, 24451, 28266, 29940, 32977, 34930, 40380, 41916, 47110, 48902, 52395, 56532, 65954, 69860, 70665, 73353, 94220, 97804, 98931, 104790, 122255, 131908, 141330, 146706, 164885, 197862, 209580, 244510, 282660, 293412, 329770, 335827, 366765, 395724, 489020, 494655, 659540, 671654, 733530, 989310, 1007481, 1343308, 1467060, 1679135, 1978620, 2014962, 2350789, 3358270, 4029924, 4701578, 5037405, 6716540, 7052367, 9403156, 10074810, 11753945, 14104734, 16455523, 20149620, 23507890, 28209468, 32911046, 35261835, 47015780, 49366569, 65822092, 70523670, 82277615, 98733138, 141047340, 164555230, 197466276, 246832845, 329110460, 493665690, 987331380]

約数ペア:

[(1, 987331380), (2, 493665690), (3, 329110460), (4, 246832845), (5, 197466276), (6, 164555230), (7, 141047340), (10, 98733138), (12, 82277615), (14, 70523670), (15, 65822092), (20, 49366569), (21, 47015780), (28, 35261835), (30, 32911046), (35, 28209468), (42, 23507890), (49, 20149620), (60, 16455523), (70, 14104734), (84, 11753945), (98, 10074810), (105, 9403156), (140, 7052367), (147, 6716540), (196, 5037405), (210, 4701578), (245, 4029924), (294, 3358270), (420, 2350789), (490, 2014962), (499, 1978620), (588, 1679135), (673, 1467060), (735, 1343308), (980, 1007481), (998, 989310), (1346, 733530), (1470, 671654), (1497, 659540), (1996, 494655), (2019, 489020), (2495, 395724), (2692, 366765), (2940, 335827), (2994, 329770), (3365, 293412), (3493, 282660), (4038, 244510), (4711, 209580), (4990, 197862), (5988, 164885), (6730, 146706), (6986, 141330), (7485, 131908), (8076, 122255), (9422, 104790), (9980, 98931), (10095, 97804), (10479, 94220), (13460, 73353), (13972, 70665), (14133, 69860), (14970, 65954), (17465, 56532), (18844, 52395), (20190, 48902), (20958, 47110), (23555, 41916), (24451, 40380), (28266, 34930), (29940, 32977)]