256906980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6829}}^1$

素因数の和:6874

約数の個数: 144

約数和(自身を含む): 895003200

約数和(自身を除く): 638096220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 19, 20, 22, 30, 33, 36, 38, 44, 45, 55, 57, 60, 66, 76, 90, 95, 99, 110, 114, 132, 165, 171, 180, 190, 198, 209, 220, 228, 285, 330, 342, 380, 396, 418, 495, 570, 627, 660, 684, 836, 855, 990, 1045, 1140, 1254, 1710, 1881, 1980, 2090, 2508, 3135, 3420, 3762, 4180, 6270, 6829, 7524, 9405, 12540, 13658, 18810, 20487, 27316, 34145, 37620, 40974, 61461, 68290, 75119, 81948, 102435, 122922, 129751, 136580, 150238, 204870, 225357, 245844, 259502, 300476, 307305, 375595, 389253, 409740, 450714, 519004, 614610, 648755, 676071, 751190, 778506, 901428, 1126785, 1167759, 1229220, 1297510, 1352142, 1427261, 1502380, 1557012, 1946265, 2253570, 2335518, 2595020, 2704284, 2854522, 3380355, 3892530, 4281783, 4507140, 4671036, 5709044, 5838795, 6760710, 7136305, 7785060, 8563566, 11677590, 12845349, 13521420, 14272610, 17127132, 21408915, 23355180, 25690698, 28545220, 42817830, 51381396, 64226745, 85635660, 128453490, 256906980]

約数ペア:

[(1, 256906980), (2, 128453490), (3, 85635660), (4, 64226745), (5, 51381396), (6, 42817830), (9, 28545220), (10, 25690698), (11, 23355180), (12, 21408915), (15, 17127132), (18, 14272610), (19, 13521420), (20, 12845349), (22, 11677590), (30, 8563566), (33, 7785060), (36, 7136305), (38, 6760710), (44, 5838795), (45, 5709044), (55, 4671036), (57, 4507140), (60, 4281783), (66, 3892530), (76, 3380355), (90, 2854522), (95, 2704284), (99, 2595020), (110, 2335518), (114, 2253570), (132, 1946265), (165, 1557012), (171, 1502380), (180, 1427261), (190, 1352142), (198, 1297510), (209, 1229220), (220, 1167759), (228, 1126785), (285, 901428), (330, 778506), (342, 751190), (380, 676071), (396, 648755), (418, 614610), (495, 519004), (570, 450714), (627, 409740), (660, 389253), (684, 375595), (836, 307305), (855, 300476), (990, 259502), (1045, 245844), (1140, 225357), (1254, 204870), (1710, 150238), (1881, 136580), (1980, 129751), (2090, 122922), (2508, 102435), (3135, 81948), (3420, 75119), (3762, 68290), (4180, 61461), (6270, 40974), (6829, 37620), (7524, 34145), (9405, 27316), (12540, 20487), (13658, 18810)]