20801291388

素因数分解:

$2^2\times 3^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1\times {\mathrm{281}}^1\times {\mathrm{487}}^1$

素因数の和:1067

約数の個数: 96

約数和(自身を含む): 49938094080

約数和(自身を除く): 29136802692

約数列:

[1, 2, 3, 4, 6, 12, 53, 106, 159, 212, 239, 281, 318, 478, 487, 562, 636, 717, 843, 956, 974, 1124, 1434, 1461, 1686, 1948, 2868, 2922, 3372, 5844, 12667, 14893, 25334, 25811, 29786, 38001, 44679, 50668, 51622, 59572, 67159, 76002, 77433, 89358, 103244, 116393, 134318, 136847, 152004, 154866, 178716, 201477, 232786, 268636, 273694, 309732, 349179, 402954, 410541, 465572, 547388, 698358, 805908, 821082, 1396716, 1642164, 3559427, 6168829, 7118854, 7252891, 10678281, 12337658, 14237708, 14505782, 18506487, 21356562, 21758673, 24675316, 29011564, 32706433, 37012974, 42713124, 43517346, 65412866, 74025948, 87034692, 98119299, 130825732, 196238598, 392477196, 1733440949, 3466881898, 5200322847, 6933763796, 10400645694, 20801291388]

約数ペア:

[(1, 20801291388), (2, 10400645694), (3, 6933763796), (4, 5200322847), (6, 3466881898), (12, 1733440949), (53, 392477196), (106, 196238598), (159, 130825732), (212, 98119299), (239, 87034692), (281, 74025948), (318, 65412866), (478, 43517346), (487, 42713124), (562, 37012974), (636, 32706433), (717, 29011564), (843, 24675316), (956, 21758673), (974, 21356562), (1124, 18506487), (1434, 14505782), (1461, 14237708), (1686, 12337658), (1948, 10678281), (2868, 7252891), (2922, 7118854), (3372, 6168829), (5844, 3559427), (12667, 1642164), (14893, 1396716), (25334, 821082), (25811, 805908), (29786, 698358), (38001, 547388), (44679, 465572), (50668, 410541), (51622, 402954), (59572, 349179), (67159, 309732), (76002, 273694), (77433, 268636), (89358, 232786), (103244, 201477), (116393, 178716), (134318, 154866), (136847, 152004)]