80720208

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{181}}^1$

素因数の和:377

約数の個数: 120

約数和(自身を含む): 240574880

約数和(自身を除く): 159854672

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 72, 76, 114, 144, 152, 163, 171, 181, 228, 304, 326, 342, 362, 456, 489, 543, 652, 684, 724, 912, 978, 1086, 1304, 1368, 1448, 1467, 1629, 1956, 2172, 2608, 2736, 2896, 2934, 3097, 3258, 3439, 3912, 4344, 5868, 6194, 6516, 6878, 7824, 8688, 9291, 10317, 11736, 12388, 13032, 13756, 18582, 20634, 23472, 24776, 26064, 27512, 27873, 29503, 30951, 37164, 41268, 49552, 55024, 55746, 59006, 61902, 74328, 82536, 88509, 111492, 118012, 123804, 148656, 165072, 177018, 222984, 236024, 247608, 265527, 354036, 445968, 472048, 495216, 531054, 560557, 708072, 1062108, 1121114, 1416144, 1681671, 2124216, 2242228, 3363342, 4248432, 4484456, 5045013, 6726684, 8968912, 10090026, 13453368, 20180052, 26906736, 40360104, 80720208]

約数ペア:

[(1, 80720208), (2, 40360104), (3, 26906736), (4, 20180052), (6, 13453368), (8, 10090026), (9, 8968912), (12, 6726684), (16, 5045013), (18, 4484456), (19, 4248432), (24, 3363342), (36, 2242228), (38, 2124216), (48, 1681671), (57, 1416144), (72, 1121114), (76, 1062108), (114, 708072), (144, 560557), (152, 531054), (163, 495216), (171, 472048), (181, 445968), (228, 354036), (304, 265527), (326, 247608), (342, 236024), (362, 222984), (456, 177018), (489, 165072), (543, 148656), (652, 123804), (684, 118012), (724, 111492), (912, 88509), (978, 82536), (1086, 74328), (1304, 61902), (1368, 59006), (1448, 55746), (1467, 55024), (1629, 49552), (1956, 41268), (2172, 37164), (2608, 30951), (2736, 29503), (2896, 27873), (2934, 27512), (3097, 26064), (3258, 24776), (3439, 23472), (3912, 20634), (4344, 18582), (5868, 13756), (6194, 13032), (6516, 12388), (6878, 11736), (7824, 10317), (8688, 9291)]