155662780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{89}}^1$

素因数の和:180

約数の個数: 144

約数和(自身を含む): 420396480

約数和(自身を除く): 264733700

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 52, 62, 65, 70, 89, 91, 124, 130, 140, 155, 178, 182, 217, 260, 310, 356, 364, 403, 434, 445, 455, 620, 623, 806, 868, 890, 910, 961, 1085, 1157, 1246, 1612, 1780, 1820, 1922, 2015, 2170, 2314, 2492, 2759, 2821, 3115, 3844, 4030, 4340, 4628, 4805, 5518, 5642, 5785, 6230, 6727, 8060, 8099, 9610, 11036, 11284, 11570, 12460, 12493, 13454, 13795, 14105, 16198, 19220, 19313, 23140, 24986, 26908, 27590, 28210, 32396, 33635, 35867, 38626, 40495, 49972, 55180, 56420, 62465, 67270, 71734, 77252, 80990, 85529, 87451, 96565, 124930, 134540, 143468, 161980, 171058, 174902, 179335, 193130, 249860, 251069, 342116, 349804, 358670, 386260, 427645, 437255, 502138, 598703, 717340, 855290, 874510, 1004276, 1111877, 1197406, 1255345, 1710580, 1749020, 2223754, 2394812, 2510690, 2993515, 4447508, 5021380, 5559385, 5987030, 7783139, 11118770, 11974060, 15566278, 22237540, 31132556, 38915695, 77831390, 155662780]

約数ペア:

[(1, 155662780), (2, 77831390), (4, 38915695), (5, 31132556), (7, 22237540), (10, 15566278), (13, 11974060), (14, 11118770), (20, 7783139), (26, 5987030), (28, 5559385), (31, 5021380), (35, 4447508), (52, 2993515), (62, 2510690), (65, 2394812), (70, 2223754), (89, 1749020), (91, 1710580), (124, 1255345), (130, 1197406), (140, 1111877), (155, 1004276), (178, 874510), (182, 855290), (217, 717340), (260, 598703), (310, 502138), (356, 437255), (364, 427645), (403, 386260), (434, 358670), (445, 349804), (455, 342116), (620, 251069), (623, 249860), (806, 193130), (868, 179335), (890, 174902), (910, 171058), (961, 161980), (1085, 143468), (1157, 134540), (1246, 124930), (1612, 96565), (1780, 87451), (1820, 85529), (1922, 80990), (2015, 77252), (2170, 71734), (2314, 67270), (2492, 62465), (2759, 56420), (2821, 55180), (3115, 49972), (3844, 40495), (4030, 38626), (4340, 35867), (4628, 33635), (4805, 32396), (5518, 28210), (5642, 27590), (5785, 26908), (6230, 24986), (6727, 23140), (8060, 19313), (8099, 19220), (9610, 16198), (11036, 14105), (11284, 13795), (11570, 13454), (12460, 12493)]