821080980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{661}}^1$

素因数の和:846

約数の個数: 144

約数和(自身を含む): 2556188544

約数和(自身を除く): 1735107564

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 67, 90, 103, 134, 180, 201, 206, 268, 309, 335, 402, 412, 515, 603, 618, 661, 670, 804, 927, 1005, 1030, 1206, 1236, 1322, 1340, 1545, 1854, 1983, 2010, 2060, 2412, 2644, 3015, 3090, 3305, 3708, 3966, 4020, 4635, 5949, 6030, 6180, 6610, 6901, 7932, 9270, 9915, 11898, 12060, 13220, 13802, 18540, 19830, 20703, 23796, 27604, 29745, 34505, 39660, 41406, 44287, 59490, 62109, 68083, 69010, 82812, 88574, 103515, 118980, 124218, 132861, 136166, 138020, 177148, 204249, 207030, 221435, 248436, 265722, 272332, 310545, 340415, 398583, 408498, 414060, 442870, 531444, 612747, 621090, 664305, 680830, 797166, 816996, 885740, 1021245, 1225494, 1242180, 1328610, 1361660, 1594332, 1992915, 2042490, 2450988, 2657220, 3063735, 3985830, 4084980, 4561561, 6127470, 7971660, 9123122, 12254940, 13684683, 18246244, 22807805, 27369366, 41054049, 45615610, 54738732, 68423415, 82108098, 91231220, 136846830, 164216196, 205270245, 273693660, 410540490, 821080980]

約数ペア:

[(1, 821080980), (2, 410540490), (3, 273693660), (4, 205270245), (5, 164216196), (6, 136846830), (9, 91231220), (10, 82108098), (12, 68423415), (15, 54738732), (18, 45615610), (20, 41054049), (30, 27369366), (36, 22807805), (45, 18246244), (60, 13684683), (67, 12254940), (90, 9123122), (103, 7971660), (134, 6127470), (180, 4561561), (201, 4084980), (206, 3985830), (268, 3063735), (309, 2657220), (335, 2450988), (402, 2042490), (412, 1992915), (515, 1594332), (603, 1361660), (618, 1328610), (661, 1242180), (670, 1225494), (804, 1021245), (927, 885740), (1005, 816996), (1030, 797166), (1206, 680830), (1236, 664305), (1322, 621090), (1340, 612747), (1545, 531444), (1854, 442870), (1983, 414060), (2010, 408498), (2060, 398583), (2412, 340415), (2644, 310545), (3015, 272332), (3090, 265722), (3305, 248436), (3708, 221435), (3966, 207030), (4020, 204249), (4635, 177148), (5949, 138020), (6030, 136166), (6180, 132861), (6610, 124218), (6901, 118980), (7932, 103515), (9270, 88574), (9915, 82812), (11898, 69010), (12060, 68083), (13220, 62109), (13802, 59490), (18540, 44287), (19830, 41406), (20703, 39660), (23796, 34505), (27604, 29745)]