20921472780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26822401}}^1$

素因数の和:26822426

約数の個数: 48

約数和(自身を含む): 63086289504

約数和(自身を除く): 42164816724

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 26822401, 53644802, 80467203, 107289604, 134112005, 160934406, 268224010, 321868812, 348691213, 402336015, 536448020, 697382426, 804672030, 1046073639, 1394764852, 1609344060, 1743456065, 2092147278, 3486912130, 4184294556, 5230368195, 6973824260, 10460736390, 20921472780]

約数ペア:

[(1, 20921472780), (2, 10460736390), (3, 6973824260), (4, 5230368195), (5, 4184294556), (6, 3486912130), (10, 2092147278), (12, 1743456065), (13, 1609344060), (15, 1394764852), (20, 1046073639), (26, 804672030), (30, 697382426), (39, 536448020), (52, 402336015), (60, 348691213), (65, 321868812), (78, 268224010), (130, 160934406), (156, 134112005), (195, 107289604), (260, 80467203), (390, 53644802), (780, 26822401)]