427819980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{145517}}^1$

素因数の和:145543

約数の個数: 72

約数和(自身を含む): 1393480368

約数和(自身を除く): 965660388

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, 588, 735, 980, 1470, 2940, 145517, 291034, 436551, 582068, 727585, 873102, 1018619, 1455170, 1746204, 2037238, 2182755, 2910340, 3055857, 4074476, 4365510, 5093095, 6111714, 7130333, 8731020, 10186190, 12223428, 14260666, 15279285, 20372380, 21390999, 28521332, 30558570, 35651665, 42781998, 61117140, 71303330, 85563996, 106954995, 142606660, 213909990, 427819980]

約数ペア:

[(1, 427819980), (2, 213909990), (3, 142606660), (4, 106954995), (5, 85563996), (6, 71303330), (7, 61117140), (10, 42781998), (12, 35651665), (14, 30558570), (15, 28521332), (20, 21390999), (21, 20372380), (28, 15279285), (30, 14260666), (35, 12223428), (42, 10186190), (49, 8731020), (60, 7130333), (70, 6111714), (84, 5093095), (98, 4365510), (105, 4074476), (140, 3055857), (147, 2910340), (196, 2182755), (210, 2037238), (245, 1746204), (294, 1455170), (420, 1018619), (490, 873102), (588, 727585), (735, 582068), (980, 436551), (1470, 291034), (2940, 145517)]