287009996

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{131}}^1\times {\mathrm{463}}^1$

素因数の和:631

約数の個数: 72

約数和(自身を含む): 627669504

約数和(自身を除く): 340659508

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 131, 169, 182, 262, 338, 364, 463, 524, 676, 917, 926, 1183, 1703, 1834, 1852, 2366, 3241, 3406, 3668, 4732, 6019, 6482, 6812, 11921, 12038, 12964, 22139, 23842, 24076, 42133, 44278, 47684, 60653, 78247, 84266, 88556, 121306, 154973, 156494, 168532, 242612, 309946, 312988, 424571, 547729, 619892, 788489, 849142, 1095458, 1576978, 1698284, 2190916, 3153956, 5519423, 10250357, 11038846, 20500714, 22077692, 41001428, 71752499, 143504998, 287009996]

約数ペア:

[(1, 287009996), (2, 143504998), (4, 71752499), (7, 41001428), (13, 22077692), (14, 20500714), (26, 11038846), (28, 10250357), (52, 5519423), (91, 3153956), (131, 2190916), (169, 1698284), (182, 1576978), (262, 1095458), (338, 849142), (364, 788489), (463, 619892), (524, 547729), (676, 424571), (917, 312988), (926, 309946), (1183, 242612), (1703, 168532), (1834, 156494), (1852, 154973), (2366, 121306), (3241, 88556), (3406, 84266), (3668, 78247), (4732, 60653), (6019, 47684), (6482, 44278), (6812, 42133), (11921, 24076), (12038, 23842), (12964, 22139)]