201819990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1\times {\mathrm{1013}}^1$

素因数の和:1281

約数の個数: 64

約数和(自身を含む): 503755200

約数和(自身を除く): 301935210

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 229, 290, 435, 458, 687, 870, 1013, 1145, 1374, 2026, 2290, 3039, 3435, 5065, 6078, 6641, 6870, 10130, 13282, 15195, 19923, 29377, 30390, 33205, 39846, 58754, 66410, 88131, 99615, 146885, 176262, 199230, 231977, 293770, 440655, 463954, 695931, 881310, 1159885, 1391862, 2319770, 3479655, 6727333, 6959310, 13454666, 20181999, 33636665, 40363998, 67273330, 100909995, 201819990]

約数ペア:

[(1, 201819990), (2, 100909995), (3, 67273330), (5, 40363998), (6, 33636665), (10, 20181999), (15, 13454666), (29, 6959310), (30, 6727333), (58, 3479655), (87, 2319770), (145, 1391862), (174, 1159885), (229, 881310), (290, 695931), (435, 463954), (458, 440655), (687, 293770), (870, 231977), (1013, 199230), (1145, 176262), (1374, 146885), (2026, 99615), (2290, 88131), (3039, 66410), (3435, 58754), (5065, 39846), (6078, 33205), (6641, 30390), (6870, 29377), (10130, 19923), (13282, 15195)]