81771480

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{877}}^1$

素因数の和:938

約数の個数: 192

約数和(自身を含む): 312287040

約数和(自身を除く): 230515560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 37, 40, 42, 45, 56, 60, 63, 70, 72, 74, 84, 90, 105, 111, 120, 126, 140, 148, 168, 180, 185, 210, 222, 252, 259, 280, 296, 315, 333, 360, 370, 420, 444, 504, 518, 555, 630, 666, 740, 777, 840, 877, 888, 1036, 1110, 1260, 1295, 1332, 1480, 1554, 1665, 1754, 2072, 2220, 2331, 2520, 2590, 2631, 2664, 3108, 3330, 3508, 3885, 4385, 4440, 4662, 5180, 5262, 6139, 6216, 6660, 7016, 7770, 7893, 8770, 9324, 10360, 10524, 11655, 12278, 13155, 13320, 15540, 15786, 17540, 18417, 18648, 21048, 23310, 24556, 26310, 30695, 31080, 31572, 32449, 35080, 36834, 39465, 46620, 49112, 52620, 55251, 61390, 63144, 64898, 73668, 78930, 92085, 93240, 97347, 105240, 110502, 122780, 129796, 147336, 157860, 162245, 184170, 194694, 221004, 227143, 245560, 259592, 276255, 292041, 315720, 324490, 368340, 389388, 442008, 454286, 486735, 552510, 584082, 648980, 681429, 736680, 778776, 908572, 973470, 1105020, 1135715, 1168164, 1297960, 1362858, 1460205, 1817144, 1946940, 2044287, 2210040, 2271430, 2336328, 2725716, 2920410, 3407145, 3893880, 4088574, 4542860, 5451432, 5840820, 6814290, 8177148, 9085720, 10221435, 11681640, 13628580, 16354296, 20442870, 27257160, 40885740, 81771480]

約数ペア:

[(1, 81771480), (2, 40885740), (3, 27257160), (4, 20442870), (5, 16354296), (6, 13628580), (7, 11681640), (8, 10221435), (9, 9085720), (10, 8177148), (12, 6814290), (14, 5840820), (15, 5451432), (18, 4542860), (20, 4088574), (21, 3893880), (24, 3407145), (28, 2920410), (30, 2725716), (35, 2336328), (36, 2271430), (37, 2210040), (40, 2044287), (42, 1946940), (45, 1817144), (56, 1460205), (60, 1362858), (63, 1297960), (70, 1168164), (72, 1135715), (74, 1105020), (84, 973470), (90, 908572), (105, 778776), (111, 736680), (120, 681429), (126, 648980), (140, 584082), (148, 552510), (168, 486735), (180, 454286), (185, 442008), (210, 389388), (222, 368340), (252, 324490), (259, 315720), (280, 292041), (296, 276255), (315, 259592), (333, 245560), (360, 227143), (370, 221004), (420, 194694), (444, 184170), (504, 162245), (518, 157860), (555, 147336), (630, 129796), (666, 122780), (740, 110502), (777, 105240), (840, 97347), (877, 93240), (888, 92085), (1036, 78930), (1110, 73668), (1260, 64898), (1295, 63144), (1332, 61390), (1480, 55251), (1554, 52620), (1665, 49112), (1754, 46620), (2072, 39465), (2220, 36834), (2331, 35080), (2520, 32449), (2590, 31572), (2631, 31080), (2664, 30695), (3108, 26310), (3330, 24556), (3508, 23310), (3885, 21048), (4385, 18648), (4440, 18417), (4662, 17540), (5180, 15786), (5262, 15540), (6139, 13320), (6216, 13155), (6660, 12278), (7016, 11655), (7770, 10524), (7893, 10360), (8770, 9324)]