651223120

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{281}}^1\times {\mathrm{491}}^1$

素因数の和:844

約数の個数: 80

約数和(自身を含む): 1548383040

約数和(自身を除く): 897159920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 281, 295, 472, 491, 562, 590, 944, 982, 1124, 1180, 1405, 1964, 2248, 2360, 2455, 2810, 3928, 4496, 4720, 4910, 5620, 7856, 9820, 11240, 16579, 19640, 22480, 28969, 33158, 39280, 57938, 66316, 82895, 115876, 132632, 137971, 144845, 165790, 231752, 265264, 275942, 289690, 331580, 463504, 551884, 579380, 663160, 689855, 1103768, 1158760, 1326320, 1379710, 2207536, 2317520, 2759420, 5518840, 8140289, 11037680, 16280578, 32561156, 40701445, 65122312, 81402890, 130244624, 162805780, 325611560, 651223120]

約数ペア:

[(1, 651223120), (2, 325611560), (4, 162805780), (5, 130244624), (8, 81402890), (10, 65122312), (16, 40701445), (20, 32561156), (40, 16280578), (59, 11037680), (80, 8140289), (118, 5518840), (236, 2759420), (281, 2317520), (295, 2207536), (472, 1379710), (491, 1326320), (562, 1158760), (590, 1103768), (944, 689855), (982, 663160), (1124, 579380), (1180, 551884), (1405, 463504), (1964, 331580), (2248, 289690), (2360, 275942), (2455, 265264), (2810, 231752), (3928, 165790), (4496, 144845), (4720, 137971), (4910, 132632), (5620, 115876), (7856, 82895), (9820, 66316), (11240, 57938), (16579, 39280), (19640, 33158), (22480, 28969)]