289468790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{211}}^1$

素因数の和:465

約数の個数: 64

約数和(自身を含む): 576338112

約数和(自身を除く): 286869322

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 173, 211, 305, 346, 422, 610, 793, 865, 1055, 1586, 1730, 2110, 2249, 2743, 3965, 4498, 5486, 7930, 10553, 11245, 12871, 13715, 21106, 22490, 25742, 27430, 36503, 52765, 64355, 73006, 105530, 128710, 137189, 167323, 182515, 274378, 334646, 365030, 474539, 685945, 836615, 949078, 1371890, 1673230, 2226683, 2372695, 4453366, 4745390, 11133415, 22266830, 28946879, 57893758, 144734395, 289468790]

約数ペア:

[(1, 289468790), (2, 144734395), (5, 57893758), (10, 28946879), (13, 22266830), (26, 11133415), (61, 4745390), (65, 4453366), (122, 2372695), (130, 2226683), (173, 1673230), (211, 1371890), (305, 949078), (346, 836615), (422, 685945), (610, 474539), (793, 365030), (865, 334646), (1055, 274378), (1586, 182515), (1730, 167323), (2110, 137189), (2249, 128710), (2743, 105530), (3965, 73006), (4498, 64355), (5486, 52765), (7930, 36503), (10553, 27430), (11245, 25742), (12871, 22490), (13715, 21106)]