128778390

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1931}}^1$

素因数の和:1979

約数の個数: 128

約数和(自身を含む): 389491200

約数和(自身を除く): 260712810

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 19, 26, 27, 30, 38, 39, 45, 54, 57, 65, 78, 90, 95, 114, 117, 130, 135, 171, 190, 195, 234, 247, 270, 285, 342, 351, 390, 494, 513, 570, 585, 702, 741, 855, 1026, 1170, 1235, 1482, 1710, 1755, 1931, 2223, 2470, 2565, 3510, 3705, 3862, 4446, 5130, 5793, 6669, 7410, 9655, 11115, 11586, 13338, 17379, 19310, 22230, 25103, 28965, 33345, 34758, 36689, 50206, 52137, 57930, 66690, 73378, 75309, 86895, 104274, 110067, 125515, 150618, 173790, 183445, 220134, 225927, 251030, 260685, 330201, 366890, 376545, 451854, 476957, 521370, 550335, 660402, 677781, 753090, 953914, 990603, 1100670, 1129635, 1355562, 1430871, 1651005, 1981206, 2259270, 2384785, 2861742, 3302010, 3388905, 4292613, 4769570, 4953015, 6777810, 7154355, 8585226, 9906030, 12877839, 14308710, 21463065, 25755678, 42926130, 64389195, 128778390]

約数ペア:

[(1, 128778390), (2, 64389195), (3, 42926130), (5, 25755678), (6, 21463065), (9, 14308710), (10, 12877839), (13, 9906030), (15, 8585226), (18, 7154355), (19, 6777810), (26, 4953015), (27, 4769570), (30, 4292613), (38, 3388905), (39, 3302010), (45, 2861742), (54, 2384785), (57, 2259270), (65, 1981206), (78, 1651005), (90, 1430871), (95, 1355562), (114, 1129635), (117, 1100670), (130, 990603), (135, 953914), (171, 753090), (190, 677781), (195, 660402), (234, 550335), (247, 521370), (270, 476957), (285, 451854), (342, 376545), (351, 366890), (390, 330201), (494, 260685), (513, 251030), (570, 225927), (585, 220134), (702, 183445), (741, 173790), (855, 150618), (1026, 125515), (1170, 110067), (1235, 104274), (1482, 86895), (1710, 75309), (1755, 73378), (1931, 66690), (2223, 57930), (2470, 52137), (2565, 50206), (3510, 36689), (3705, 34758), (3862, 33345), (4446, 28965), (5130, 25103), (5793, 22230), (6669, 19310), (7410, 17379), (9655, 13338), (11115, 11586)]