19555900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{307}}^1$

素因数の和:348

約数の個数: 108

約数和(自身を含む): 53335128

約数和(自身を除く): 33779228

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 49, 50, 52, 65, 70, 91, 98, 100, 130, 140, 175, 182, 196, 245, 260, 307, 325, 350, 364, 455, 490, 614, 637, 650, 700, 910, 980, 1225, 1228, 1274, 1300, 1535, 1820, 2149, 2275, 2450, 2548, 3070, 3185, 3991, 4298, 4550, 4900, 6140, 6370, 7675, 7982, 8596, 9100, 10745, 12740, 15043, 15350, 15925, 15964, 19955, 21490, 27937, 30086, 30700, 31850, 39910, 42980, 53725, 55874, 60172, 63700, 75215, 79820, 99775, 107450, 111748, 139685, 150430, 195559, 199550, 214900, 279370, 300860, 376075, 391118, 399100, 558740, 698425, 752150, 782236, 977795, 1396850, 1504300, 1955590, 2793700, 3911180, 4888975, 9777950, 19555900]

約数ペア:

[(1, 19555900), (2, 9777950), (4, 4888975), (5, 3911180), (7, 2793700), (10, 1955590), (13, 1504300), (14, 1396850), (20, 977795), (25, 782236), (26, 752150), (28, 698425), (35, 558740), (49, 399100), (50, 391118), (52, 376075), (65, 300860), (70, 279370), (91, 214900), (98, 199550), (100, 195559), (130, 150430), (140, 139685), (175, 111748), (182, 107450), (196, 99775), (245, 79820), (260, 75215), (307, 63700), (325, 60172), (350, 55874), (364, 53725), (455, 42980), (490, 39910), (614, 31850), (637, 30700), (650, 30086), (700, 27937), (910, 21490), (980, 19955), (1225, 15964), (1228, 15925), (1274, 15350), (1300, 15043), (1535, 12740), (1820, 10745), (2149, 9100), (2275, 8596), (2450, 7982), (2548, 7675), (3070, 6370), (3185, 6140), (3991, 4900), (4298, 4550)]