20123057916

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{641761}}^1$

素因数の和:641851

約数の個数: 72

約数和(自身を含む): 55597125584

約数和(自身を除く): 35474067668

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 67, 78, 117, 134, 156, 201, 234, 268, 402, 468, 603, 804, 871, 1206, 1742, 2412, 2613, 3484, 5226, 7839, 10452, 15678, 31356, 641761, 1283522, 1925283, 2567044, 3850566, 5775849, 7701132, 8342893, 11551698, 16685786, 23103396, 25028679, 33371572, 42997987, 50057358, 75086037, 85995974, 100114716, 128993961, 150172074, 171991948, 257987922, 300344148, 386981883, 515975844, 558973831, 773963766, 1117947662, 1547927532, 1676921493, 2235895324, 3353842986, 5030764479, 6707685972, 10061528958, 20123057916]

約数ペア:

[(1, 20123057916), (2, 10061528958), (3, 6707685972), (4, 5030764479), (6, 3353842986), (9, 2235895324), (12, 1676921493), (13, 1547927532), (18, 1117947662), (26, 773963766), (36, 558973831), (39, 515975844), (52, 386981883), (67, 300344148), (78, 257987922), (117, 171991948), (134, 150172074), (156, 128993961), (201, 100114716), (234, 85995974), (268, 75086037), (402, 50057358), (468, 42997987), (603, 33371572), (804, 25028679), (871, 23103396), (1206, 16685786), (1742, 11551698), (2412, 8342893), (2613, 7701132), (3484, 5775849), (5226, 3850566), (7839, 2567044), (10452, 1925283), (15678, 1283522), (31356, 641761)]