19941675

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 36018528

約数和(自身を除く): 16076853

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 113, 181, 195, 325, 339, 543, 565, 905, 975, 1469, 1695, 2353, 2715, 2825, 4407, 4525, 7059, 7345, 8475, 11765, 13575, 20453, 22035, 35295, 36725, 58825, 61359, 102265, 110175, 176475, 265889, 306795, 511325, 797667, 1329445, 1533975, 3988335, 6647225, 19941675]

約数ペア:

[(1, 19941675), (3, 6647225), (5, 3988335), (13, 1533975), (15, 1329445), (25, 797667), (39, 511325), (65, 306795), (75, 265889), (113, 176475), (181, 110175), (195, 102265), (325, 61359), (339, 58825), (543, 36725), (565, 35295), (905, 22035), (975, 20453), (1469, 13575), (1695, 11765), (2353, 8475), (2715, 7345), (2825, 7059), (4407, 4525)]