65681980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{239}}^1$

素因数の和:419

約数の個数: 96

約数和(自身を含む): 171601920

約数和(自身を除く): 105919940

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 151, 182, 239, 260, 302, 364, 455, 478, 604, 755, 910, 956, 1057, 1195, 1510, 1673, 1820, 1963, 2114, 2390, 3020, 3107, 3346, 3926, 4228, 4780, 5285, 6214, 6692, 7852, 8365, 9815, 10570, 12428, 13741, 15535, 16730, 19630, 21140, 21749, 27482, 31070, 33460, 36089, 39260, 43498, 54964, 62140, 68705, 72178, 86996, 108745, 137410, 144356, 180445, 217490, 252623, 274820, 360890, 434980, 469157, 505246, 721780, 938314, 1010492, 1263115, 1876628, 2345785, 2526230, 3284099, 4691570, 5052460, 6568198, 9383140, 13136396, 16420495, 32840990, 65681980]

約数ペア:

[(1, 65681980), (2, 32840990), (4, 16420495), (5, 13136396), (7, 9383140), (10, 6568198), (13, 5052460), (14, 4691570), (20, 3284099), (26, 2526230), (28, 2345785), (35, 1876628), (52, 1263115), (65, 1010492), (70, 938314), (91, 721780), (130, 505246), (140, 469157), (151, 434980), (182, 360890), (239, 274820), (260, 252623), (302, 217490), (364, 180445), (455, 144356), (478, 137410), (604, 108745), (755, 86996), (910, 72178), (956, 68705), (1057, 62140), (1195, 54964), (1510, 43498), (1673, 39260), (1820, 36089), (1963, 33460), (2114, 31070), (2390, 27482), (3020, 21749), (3107, 21140), (3346, 19630), (3926, 16730), (4228, 15535), (4780, 13741), (5285, 12428), (6214, 10570), (6692, 9815), (7852, 8365)]