128778960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{911}}^1$

素因数の和:977

約数の個数: 160

約数和(自身を含む): 434257920

約数和(自身を除く): 305478960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 31, 38, 40, 48, 57, 60, 62, 76, 80, 93, 95, 114, 120, 124, 152, 155, 186, 190, 228, 240, 248, 285, 304, 310, 372, 380, 456, 465, 496, 570, 589, 620, 744, 760, 911, 912, 930, 1140, 1178, 1240, 1488, 1520, 1767, 1822, 1860, 2280, 2356, 2480, 2733, 2945, 3534, 3644, 3720, 4555, 4560, 4712, 5466, 5890, 7068, 7288, 7440, 8835, 9110, 9424, 10932, 11780, 13665, 14136, 14576, 17309, 17670, 18220, 21864, 23560, 27330, 28241, 28272, 34618, 35340, 36440, 43728, 47120, 51927, 54660, 56482, 69236, 70680, 72880, 84723, 86545, 103854, 109320, 112964, 138472, 141205, 141360, 169446, 173090, 207708, 218640, 225928, 259635, 276944, 282410, 338892, 346180, 415416, 423615, 451856, 519270, 536579, 564820, 677784, 692360, 830832, 847230, 1038540, 1073158, 1129640, 1355568, 1384720, 1609737, 1694460, 2077080, 2146316, 2259280, 2682895, 3219474, 3388920, 4154160, 4292632, 5365790, 6438948, 6777840, 8048685, 8585264, 10731580, 12877896, 16097370, 21463160, 25755792, 32194740, 42926320, 64389480, 128778960]

約数ペア:

[(1, 128778960), (2, 64389480), (3, 42926320), (4, 32194740), (5, 25755792), (6, 21463160), (8, 16097370), (10, 12877896), (12, 10731580), (15, 8585264), (16, 8048685), (19, 6777840), (20, 6438948), (24, 5365790), (30, 4292632), (31, 4154160), (38, 3388920), (40, 3219474), (48, 2682895), (57, 2259280), (60, 2146316), (62, 2077080), (76, 1694460), (80, 1609737), (93, 1384720), (95, 1355568), (114, 1129640), (120, 1073158), (124, 1038540), (152, 847230), (155, 830832), (186, 692360), (190, 677784), (228, 564820), (240, 536579), (248, 519270), (285, 451856), (304, 423615), (310, 415416), (372, 346180), (380, 338892), (456, 282410), (465, 276944), (496, 259635), (570, 225928), (589, 218640), (620, 207708), (744, 173090), (760, 169446), (911, 141360), (912, 141205), (930, 138472), (1140, 112964), (1178, 109320), (1240, 103854), (1488, 86545), (1520, 84723), (1767, 72880), (1822, 70680), (1860, 69236), (2280, 56482), (2356, 54660), (2480, 51927), (2733, 47120), (2945, 43728), (3534, 36440), (3644, 35340), (3720, 34618), (4555, 28272), (4560, 28241), (4712, 27330), (5466, 23560), (5890, 21864), (7068, 18220), (7288, 17670), (7440, 17309), (8835, 14576), (9110, 14136), (9424, 13665), (10932, 11780)]