1817800

素因数分解:

$2^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 4324500

約数和(自身を除く): 2506700

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 61, 100, 122, 149, 200, 244, 298, 305, 488, 596, 610, 745, 1192, 1220, 1490, 1525, 2440, 2980, 3050, 3725, 5960, 6100, 7450, 9089, 12200, 14900, 18178, 29800, 36356, 45445, 72712, 90890, 181780, 227225, 363560, 454450, 908900, 1817800]

約数ペア:

[(1, 1817800), (2, 908900), (4, 454450), (5, 363560), (8, 227225), (10, 181780), (20, 90890), (25, 72712), (40, 45445), (50, 36356), (61, 29800), (100, 18178), (122, 14900), (149, 12200), (200, 9089), (244, 7450), (298, 6100), (305, 5960), (488, 3725), (596, 3050), (610, 2980), (745, 2440), (1192, 1525), (1220, 1490)]