245780340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{315103}}^1$

素因数の和:315128

約数の個数: 48

約数和(自身を含む): 741124608

約数和(自身を除く): 495344268

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 315103, 630206, 945309, 1260412, 1575515, 1890618, 3151030, 3781236, 4096339, 4726545, 6302060, 8192678, 9453090, 12289017, 16385356, 18906180, 20481695, 24578034, 40963390, 49156068, 61445085, 81926780, 122890170, 245780340]

約数ペア:

[(1, 245780340), (2, 122890170), (3, 81926780), (4, 61445085), (5, 49156068), (6, 40963390), (10, 24578034), (12, 20481695), (13, 18906180), (15, 16385356), (20, 12289017), (26, 9453090), (30, 8192678), (39, 6302060), (52, 4726545), (60, 4096339), (65, 3781236), (78, 3151030), (130, 1890618), (156, 1575515), (195, 1260412), (260, 945309), (390, 630206), (780, 315103)]