2019445820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{881}}^1\times {\mathrm{2339}}^1$

素因数の和:3243

約数の個数: 72

約数和(自身を含む): 4940928720

約数和(自身を除く): 2921482900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 881, 980, 1762, 2339, 3524, 4405, 4678, 6167, 8810, 9356, 11695, 12334, 16373, 17620, 23390, 24668, 30835, 32746, 43169, 46780, 61670, 65492, 81865, 86338, 114611, 123340, 163730, 172676, 215845, 229222, 327460, 431690, 458444, 573055, 863380, 1146110, 2060659, 2292220, 4121318, 8242636, 10303295, 14424613, 20606590, 28849226, 41213180, 57698452, 72123065, 100972291, 144246130, 201944582, 288492260, 403889164, 504861455, 1009722910, 2019445820]

約数ペア:

[(1, 2019445820), (2, 1009722910), (4, 504861455), (5, 403889164), (7, 288492260), (10, 201944582), (14, 144246130), (20, 100972291), (28, 72123065), (35, 57698452), (49, 41213180), (70, 28849226), (98, 20606590), (140, 14424613), (196, 10303295), (245, 8242636), (490, 4121318), (881, 2292220), (980, 2060659), (1762, 1146110), (2339, 863380), (3524, 573055), (4405, 458444), (4678, 431690), (6167, 327460), (8810, 229222), (9356, 215845), (11695, 172676), (12334, 163730), (16373, 123340), (17620, 114611), (23390, 86338), (24668, 81865), (30835, 65492), (32746, 61670), (43169, 46780)]