71948890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:335

約数の個数: 64

約数和(自身を含む): 145740672

約数和(自身を除く): 73791782

約数列:

[1, 2, 5, 10, 13, 26, 43, 61, 65, 86, 122, 130, 211, 215, 305, 422, 430, 559, 610, 793, 1055, 1118, 1586, 2110, 2623, 2743, 2795, 3965, 5246, 5486, 5590, 7930, 9073, 12871, 13115, 13715, 18146, 25742, 26230, 27430, 34099, 45365, 64355, 68198, 90730, 117949, 128710, 167323, 170495, 235898, 334646, 340990, 553453, 589745, 836615, 1106906, 1179490, 1673230, 2767265, 5534530, 7194889, 14389778, 35974445, 71948890]

約数ペア:

[(1, 71948890), (2, 35974445), (5, 14389778), (10, 7194889), (13, 5534530), (26, 2767265), (43, 1673230), (61, 1179490), (65, 1106906), (86, 836615), (122, 589745), (130, 553453), (211, 340990), (215, 334646), (305, 235898), (422, 170495), (430, 167323), (559, 128710), (610, 117949), (793, 90730), (1055, 68198), (1118, 64355), (1586, 45365), (2110, 34099), (2623, 27430), (2743, 26230), (2795, 25742), (3965, 18146), (5246, 13715), (5486, 13115), (5590, 12871), (7930, 9073)]