51918930

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:281

約数の個数: 144

約数和(自身を含む): 160429464

約数和(自身を除く): 108510534

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 61, 63, 70, 90, 98, 105, 122, 126, 147, 183, 193, 210, 245, 294, 305, 315, 366, 386, 427, 441, 490, 549, 579, 610, 630, 735, 854, 882, 915, 965, 1098, 1158, 1281, 1351, 1470, 1737, 1830, 1930, 2135, 2205, 2562, 2702, 2745, 2895, 2989, 3474, 3843, 4053, 4270, 4410, 5490, 5790, 5978, 6405, 6755, 7686, 8106, 8685, 8967, 9457, 11773, 12159, 12810, 13510, 14945, 17370, 17934, 18914, 19215, 20265, 23546, 24318, 26901, 28371, 29890, 35319, 38430, 40530, 44835, 47285, 53802, 56742, 58865, 60795, 70638, 82411, 85113, 89670, 94570, 105957, 117730, 121590, 134505, 141855, 164822, 170226, 176595, 211914, 247233, 269010, 283710, 353190, 412055, 425565, 494466, 529785, 576877, 741699, 824110, 851130, 1059570, 1153754, 1236165, 1483398, 1730631, 2472330, 2884385, 3461262, 3708495, 5191893, 5768770, 7416990, 8653155, 10383786, 17306310, 25959465, 51918930]

約数ペア:

[(1, 51918930), (2, 25959465), (3, 17306310), (5, 10383786), (6, 8653155), (7, 7416990), (9, 5768770), (10, 5191893), (14, 3708495), (15, 3461262), (18, 2884385), (21, 2472330), (30, 1730631), (35, 1483398), (42, 1236165), (45, 1153754), (49, 1059570), (61, 851130), (63, 824110), (70, 741699), (90, 576877), (98, 529785), (105, 494466), (122, 425565), (126, 412055), (147, 353190), (183, 283710), (193, 269010), (210, 247233), (245, 211914), (294, 176595), (305, 170226), (315, 164822), (366, 141855), (386, 134505), (427, 121590), (441, 117730), (490, 105957), (549, 94570), (579, 89670), (610, 85113), (630, 82411), (735, 70638), (854, 60795), (882, 58865), (915, 56742), (965, 53802), (1098, 47285), (1158, 44835), (1281, 40530), (1351, 38430), (1470, 35319), (1737, 29890), (1830, 28371), (1930, 26901), (2135, 24318), (2205, 23546), (2562, 20265), (2702, 19215), (2745, 18914), (2895, 17934), (2989, 17370), (3474, 14945), (3843, 13510), (4053, 12810), (4270, 12159), (4410, 11773), (5490, 9457), (5790, 8967), (5978, 8685), (6405, 8106), (6755, 7686)]