205434580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{12953}}^1$

素因数の和:13036

約数の個数: 48

約数和(自身を含む): 472251024

約数和(自身を除く): 266816444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 3172, 3965, 7930, 12953, 15860, 25906, 51812, 64765, 129530, 168389, 259060, 336778, 673556, 790133, 841945, 1580266, 1683890, 3160532, 3367780, 3950665, 7901330, 10271729, 15802660, 20543458, 41086916, 51358645, 102717290, 205434580]

約数ペア:

[(1, 205434580), (2, 102717290), (4, 51358645), (5, 41086916), (10, 20543458), (13, 15802660), (20, 10271729), (26, 7901330), (52, 3950665), (61, 3367780), (65, 3160532), (122, 1683890), (130, 1580266), (244, 841945), (260, 790133), (305, 673556), (610, 336778), (793, 259060), (1220, 168389), (1586, 129530), (3172, 64765), (3965, 51812), (7930, 25906), (12953, 15860)]