20199017650

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{284293}}^1$

素因数の和:284348

約数の個数: 72

約数和(自身を含む): 45211274820

約数和(自身を除く): 25012257170

約数列:

[1, 2, 5, 7, 10, 14, 25, 29, 35, 49, 50, 58, 70, 98, 145, 175, 203, 245, 290, 350, 406, 490, 725, 1015, 1225, 1421, 1450, 2030, 2450, 2842, 5075, 7105, 10150, 14210, 35525, 71050, 284293, 568586, 1421465, 1990051, 2842930, 3980102, 7107325, 8244497, 9950255, 13930357, 14214650, 16488994, 19900510, 27860714, 41222485, 49751275, 57711479, 69651785, 82444970, 99502550, 115422958, 139303570, 206112425, 288557395, 348258925, 403980353, 412224850, 577114790, 696517850, 807960706, 1442786975, 2019901765, 2885573950, 4039803530, 10099508825, 20199017650]

約数ペア:

[(1, 20199017650), (2, 10099508825), (5, 4039803530), (7, 2885573950), (10, 2019901765), (14, 1442786975), (25, 807960706), (29, 696517850), (35, 577114790), (49, 412224850), (50, 403980353), (58, 348258925), (70, 288557395), (98, 206112425), (145, 139303570), (175, 115422958), (203, 99502550), (245, 82444970), (290, 69651785), (350, 57711479), (406, 49751275), (490, 41222485), (725, 27860714), (1015, 19900510), (1225, 16488994), (1421, 14214650), (1450, 13930357), (2030, 9950255), (2450, 8244497), (2842, 7107325), (5075, 3980102), (7105, 2842930), (10150, 1990051), (14210, 1421465), (35525, 568586), (71050, 284293)]