27991750

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:190

約数の個数: 64

約数和(自身を含む): 56609280

約数和(自身を除く): 28617530

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 71, 83, 95, 125, 142, 166, 190, 250, 355, 415, 475, 710, 830, 950, 1349, 1577, 1775, 2075, 2375, 2698, 3154, 3550, 4150, 4750, 5893, 6745, 7885, 8875, 10375, 11786, 13490, 15770, 17750, 20750, 29465, 33725, 39425, 58930, 67450, 78850, 111967, 147325, 168625, 197125, 223934, 294650, 337250, 394250, 559835, 736625, 1119670, 1473250, 2799175, 5598350, 13995875, 27991750]

約数ペア:

[(1, 27991750), (2, 13995875), (5, 5598350), (10, 2799175), (19, 1473250), (25, 1119670), (38, 736625), (50, 559835), (71, 394250), (83, 337250), (95, 294650), (125, 223934), (142, 197125), (166, 168625), (190, 147325), (250, 111967), (355, 78850), (415, 67450), (475, 58930), (710, 39425), (830, 33725), (950, 29465), (1349, 20750), (1577, 17750), (1775, 15770), (2075, 13490), (2375, 11786), (2698, 10375), (3154, 8875), (3550, 7885), (4150, 6745), (4750, 5893)]