64955000

素因数分解:

$2^3\times 5^4\times {\mathrm{11}}^1\times {\mathrm{1181}}^1$

素因数の和:1218

約数の個数: 80

約数和(自身を含む): 166165560

約数和(自身を除く): 101210560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 125, 200, 220, 250, 275, 440, 500, 550, 625, 1000, 1100, 1181, 1250, 1375, 2200, 2362, 2500, 2750, 4724, 5000, 5500, 5905, 6875, 9448, 11000, 11810, 12991, 13750, 23620, 25982, 27500, 29525, 47240, 51964, 55000, 59050, 64955, 103928, 118100, 129910, 147625, 236200, 259820, 295250, 324775, 519640, 590500, 649550, 738125, 1181000, 1299100, 1476250, 1623875, 2598200, 2952500, 3247750, 5905000, 6495500, 8119375, 12991000, 16238750, 32477500, 64955000]

約数ペア:

[(1, 64955000), (2, 32477500), (4, 16238750), (5, 12991000), (8, 8119375), (10, 6495500), (11, 5905000), (20, 3247750), (22, 2952500), (25, 2598200), (40, 1623875), (44, 1476250), (50, 1299100), (55, 1181000), (88, 738125), (100, 649550), (110, 590500), (125, 519640), (200, 324775), (220, 295250), (250, 259820), (275, 236200), (440, 147625), (500, 129910), (550, 118100), (625, 103928), (1000, 64955), (1100, 59050), (1181, 55000), (1250, 51964), (1375, 47240), (2200, 29525), (2362, 27500), (2500, 25982), (2750, 23620), (4724, 13750), (5000, 12991), (5500, 11810), (5905, 11000), (6875, 9448)]