21000496960

素因数分解:

$2^6\times 5^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{7159}}^1$

素因数の和:7368

約数の個数: 112

約数和(自身を含む): 51067411200

約数和(自身を除く): 30066914240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 103, 160, 178, 206, 320, 356, 412, 445, 515, 712, 824, 890, 1030, 1424, 1648, 1780, 2060, 2848, 3296, 3560, 4120, 5696, 6592, 7120, 7159, 8240, 9167, 14240, 14318, 16480, 18334, 28480, 28636, 32960, 35795, 36668, 45835, 57272, 71590, 73336, 91670, 114544, 143180, 146672, 183340, 229088, 286360, 293344, 366680, 458176, 572720, 586688, 637151, 733360, 737377, 1145440, 1274302, 1466720, 1474754, 2290880, 2548604, 2933440, 2949508, 3185755, 3686885, 5097208, 5899016, 6371510, 7373770, 10194416, 11798032, 12743020, 14747540, 20388832, 23596064, 25486040, 29495080, 40777664, 47192128, 50972080, 58990160, 65626553, 101944160, 117980320, 131253106, 203888320, 235960640, 262506212, 328132765, 525012424, 656265530, 1050024848, 1312531060, 2100049696, 2625062120, 4200099392, 5250124240, 10500248480, 21000496960]

約数ペア:

[(1, 21000496960), (2, 10500248480), (4, 5250124240), (5, 4200099392), (8, 2625062120), (10, 2100049696), (16, 1312531060), (20, 1050024848), (32, 656265530), (40, 525012424), (64, 328132765), (80, 262506212), (89, 235960640), (103, 203888320), (160, 131253106), (178, 117980320), (206, 101944160), (320, 65626553), (356, 58990160), (412, 50972080), (445, 47192128), (515, 40777664), (712, 29495080), (824, 25486040), (890, 23596064), (1030, 20388832), (1424, 14747540), (1648, 12743020), (1780, 11798032), (2060, 10194416), (2848, 7373770), (3296, 6371510), (3560, 5899016), (4120, 5097208), (5696, 3686885), (6592, 3185755), (7120, 2949508), (7159, 2933440), (8240, 2548604), (9167, 2290880), (14240, 1474754), (14318, 1466720), (16480, 1274302), (18334, 1145440), (28480, 737377), (28636, 733360), (32960, 637151), (35795, 586688), (36668, 572720), (45835, 458176), (57272, 366680), (71590, 293344), (73336, 286360), (91670, 229088), (114544, 183340), (143180, 146672)]