203465720

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1\times {\mathrm{181}}^1$

素因数の和:528

約数の個数: 64

約数和(自身を含む): 465847200

約数和(自身を除く): 262381480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 179, 181, 314, 358, 362, 628, 716, 724, 785, 895, 905, 1256, 1432, 1448, 1570, 1790, 1810, 3140, 3580, 3620, 6280, 7160, 7240, 28103, 28417, 32399, 56206, 56834, 64798, 112412, 113668, 129596, 140515, 142085, 161995, 224824, 227336, 259192, 281030, 284170, 323990, 562060, 568340, 647980, 1124120, 1136680, 1295960, 5086643, 10173286, 20346572, 25433215, 40693144, 50866430, 101732860, 203465720]

約数ペア:

[(1, 203465720), (2, 101732860), (4, 50866430), (5, 40693144), (8, 25433215), (10, 20346572), (20, 10173286), (40, 5086643), (157, 1295960), (179, 1136680), (181, 1124120), (314, 647980), (358, 568340), (362, 562060), (628, 323990), (716, 284170), (724, 281030), (785, 259192), (895, 227336), (905, 224824), (1256, 161995), (1432, 142085), (1448, 140515), (1570, 129596), (1790, 113668), (1810, 112412), (3140, 64798), (3580, 56834), (3620, 56206), (6280, 32399), (7160, 28417), (7240, 28103)]