156421720

素因数分解:

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

素因数の和:922

約数の個数: 128

約数和(自身を含む): 442512000

約数和(自身を除く): 286090280

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 130, 140, 182, 196, 245, 260, 280, 343, 364, 392, 455, 490, 520, 637, 686, 728, 877, 910, 980, 1274, 1372, 1715, 1754, 1820, 1960, 2548, 2744, 3185, 3430, 3508, 3640, 4385, 4459, 5096, 6139, 6370, 6860, 7016, 8770, 8918, 11401, 12278, 12740, 13720, 17540, 17836, 22295, 22802, 24556, 25480, 30695, 35080, 35672, 42973, 44590, 45604, 49112, 57005, 61390, 79807, 85946, 89180, 91208, 114010, 122780, 159614, 171892, 178360, 214865, 228020, 245560, 300811, 319228, 343784, 399035, 429730, 456040, 558649, 601622, 638456, 798070, 859460, 1117298, 1203244, 1504055, 1596140, 1718920, 2234596, 2406488, 2793245, 3008110, 3192280, 3910543, 4469192, 5586490, 6016220, 7821086, 11172980, 12032440, 15642172, 19552715, 22345960, 31284344, 39105430, 78210860, 156421720]

約数ペア:

[(1, 156421720), (2, 78210860), (4, 39105430), (5, 31284344), (7, 22345960), (8, 19552715), (10, 15642172), (13, 12032440), (14, 11172980), (20, 7821086), (26, 6016220), (28, 5586490), (35, 4469192), (40, 3910543), (49, 3192280), (52, 3008110), (56, 2793245), (65, 2406488), (70, 2234596), (91, 1718920), (98, 1596140), (104, 1504055), (130, 1203244), (140, 1117298), (182, 859460), (196, 798070), (245, 638456), (260, 601622), (280, 558649), (343, 456040), (364, 429730), (392, 399035), (455, 343784), (490, 319228), (520, 300811), (637, 245560), (686, 228020), (728, 214865), (877, 178360), (910, 171892), (980, 159614), (1274, 122780), (1372, 114010), (1715, 91208), (1754, 89180), (1820, 85946), (1960, 79807), (2548, 61390), (2744, 57005), (3185, 49112), (3430, 45604), (3508, 44590), (3640, 42973), (4385, 35672), (4459, 35080), (5096, 30695), (6139, 25480), (6370, 24556), (6860, 22802), (7016, 22295), (8770, 17836), (8918, 17540), (11401, 13720), (12278, 12740)]