78210860

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{877}}^1$

素因数の和:920

約数の個数: 96

約数和(自身を含む): 206505600

約数和(自身を除く): 128294740

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 343, 364, 455, 490, 637, 686, 877, 910, 980, 1274, 1372, 1715, 1754, 1820, 2548, 3185, 3430, 3508, 4385, 4459, 6139, 6370, 6860, 8770, 8918, 11401, 12278, 12740, 17540, 17836, 22295, 22802, 24556, 30695, 42973, 44590, 45604, 57005, 61390, 79807, 85946, 89180, 114010, 122780, 159614, 171892, 214865, 228020, 300811, 319228, 399035, 429730, 558649, 601622, 798070, 859460, 1117298, 1203244, 1504055, 1596140, 2234596, 2793245, 3008110, 3910543, 5586490, 6016220, 7821086, 11172980, 15642172, 19552715, 39105430, 78210860]

約数ペア:

[(1, 78210860), (2, 39105430), (4, 19552715), (5, 15642172), (7, 11172980), (10, 7821086), (13, 6016220), (14, 5586490), (20, 3910543), (26, 3008110), (28, 2793245), (35, 2234596), (49, 1596140), (52, 1504055), (65, 1203244), (70, 1117298), (91, 859460), (98, 798070), (130, 601622), (140, 558649), (182, 429730), (196, 399035), (245, 319228), (260, 300811), (343, 228020), (364, 214865), (455, 171892), (490, 159614), (637, 122780), (686, 114010), (877, 89180), (910, 85946), (980, 79807), (1274, 61390), (1372, 57005), (1715, 45604), (1754, 44590), (1820, 42973), (2548, 30695), (3185, 24556), (3430, 22802), (3508, 22295), (4385, 17836), (4459, 17540), (6139, 12740), (6370, 12278), (6860, 11401), (8770, 8918)]