1991312784

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{1871}}^1$

素因数の和:2293

約数の個数: 120

約数和(自身を含む): 5884444800

約数和(自身を除く): 3893132016

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 72, 76, 114, 144, 152, 171, 228, 304, 342, 389, 456, 684, 778, 912, 1167, 1368, 1556, 1871, 2334, 2736, 3112, 3501, 3742, 4668, 5613, 6224, 7002, 7391, 7484, 9336, 11226, 14004, 14782, 14968, 16839, 18672, 22173, 22452, 28008, 29564, 29936, 33678, 35549, 44346, 44904, 56016, 59128, 66519, 67356, 71098, 88692, 89808, 106647, 118256, 133038, 134712, 142196, 177384, 213294, 266076, 269424, 284392, 319941, 354768, 426588, 532152, 568784, 639882, 727819, 853176, 1064304, 1279764, 1455638, 1706352, 2183457, 2559528, 2911276, 4366914, 5119056, 5822552, 6550371, 8733828, 11645104, 13100742, 13828561, 17467656, 26201484, 27657122, 34935312, 41485683, 52402968, 55314244, 82971366, 104805936, 110628488, 124457049, 165942732, 221256976, 248914098, 331885464, 497828196, 663770928, 995656392, 1991312784]

約数ペア:

[(1, 1991312784), (2, 995656392), (3, 663770928), (4, 497828196), (6, 331885464), (8, 248914098), (9, 221256976), (12, 165942732), (16, 124457049), (18, 110628488), (19, 104805936), (24, 82971366), (36, 55314244), (38, 52402968), (48, 41485683), (57, 34935312), (72, 27657122), (76, 26201484), (114, 17467656), (144, 13828561), (152, 13100742), (171, 11645104), (228, 8733828), (304, 6550371), (342, 5822552), (389, 5119056), (456, 4366914), (684, 2911276), (778, 2559528), (912, 2183457), (1167, 1706352), (1368, 1455638), (1556, 1279764), (1871, 1064304), (2334, 853176), (2736, 727819), (3112, 639882), (3501, 568784), (3742, 532152), (4668, 426588), (5613, 354768), (6224, 319941), (7002, 284392), (7391, 269424), (7484, 266076), (9336, 213294), (11226, 177384), (14004, 142196), (14782, 134712), (14968, 133038), (16839, 118256), (18672, 106647), (22173, 89808), (22452, 88692), (28008, 71098), (29564, 67356), (29936, 66519), (33678, 59128), (35549, 56016), (44346, 44904)]