77912900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{821}}^1$

素因数の和:921

約数の個数: 72

約数和(自身を含む): 184795464

約数和(自身を除く): 106882564

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 73, 100, 130, 146, 260, 292, 325, 365, 650, 730, 821, 949, 1300, 1460, 1642, 1825, 1898, 3284, 3650, 3796, 4105, 4745, 7300, 8210, 9490, 10673, 16420, 18980, 20525, 21346, 23725, 41050, 42692, 47450, 53365, 59933, 82100, 94900, 106730, 119866, 213460, 239732, 266825, 299665, 533650, 599330, 779129, 1067300, 1198660, 1498325, 1558258, 2996650, 3116516, 3895645, 5993300, 7791290, 15582580, 19478225, 38956450, 77912900]

約数ペア:

[(1, 77912900), (2, 38956450), (4, 19478225), (5, 15582580), (10, 7791290), (13, 5993300), (20, 3895645), (25, 3116516), (26, 2996650), (50, 1558258), (52, 1498325), (65, 1198660), (73, 1067300), (100, 779129), (130, 599330), (146, 533650), (260, 299665), (292, 266825), (325, 239732), (365, 213460), (650, 119866), (730, 106730), (821, 94900), (949, 82100), (1300, 59933), (1460, 53365), (1642, 47450), (1825, 42692), (1898, 41050), (3284, 23725), (3650, 21346), (3796, 20525), (4105, 18980), (4745, 16420), (7300, 10673), (8210, 9490)]