19061900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:112

約数の個数: 144

約数和(自身を含む): 51330048

約数和(自身を除く): 32268148

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 25, 26, 31, 43, 44, 50, 52, 55, 62, 65, 86, 100, 110, 124, 130, 143, 155, 172, 215, 220, 260, 275, 286, 310, 325, 341, 403, 430, 473, 550, 559, 572, 620, 650, 682, 715, 775, 806, 860, 946, 1075, 1100, 1118, 1300, 1333, 1364, 1430, 1550, 1612, 1705, 1892, 2015, 2150, 2236, 2365, 2666, 2795, 2860, 3100, 3410, 3575, 4030, 4300, 4433, 4730, 5332, 5590, 6149, 6665, 6820, 7150, 8060, 8525, 8866, 9460, 10075, 11180, 11825, 12298, 13330, 13975, 14300, 14663, 17050, 17329, 17732, 20150, 22165, 23650, 24596, 26660, 27950, 29326, 30745, 33325, 34100, 34658, 40300, 44330, 47300, 55900, 58652, 61490, 66650, 69316, 73315, 86645, 88660, 110825, 122980, 133300, 146630, 153725, 173290, 190619, 221650, 293260, 307450, 346580, 366575, 381238, 433225, 443300, 614900, 733150, 762476, 866450, 953095, 1466300, 1732900, 1906190, 3812380, 4765475, 9530950, 19061900]

約数ペア:

[(1, 19061900), (2, 9530950), (4, 4765475), (5, 3812380), (10, 1906190), (11, 1732900), (13, 1466300), (20, 953095), (22, 866450), (25, 762476), (26, 733150), (31, 614900), (43, 443300), (44, 433225), (50, 381238), (52, 366575), (55, 346580), (62, 307450), (65, 293260), (86, 221650), (100, 190619), (110, 173290), (124, 153725), (130, 146630), (143, 133300), (155, 122980), (172, 110825), (215, 88660), (220, 86645), (260, 73315), (275, 69316), (286, 66650), (310, 61490), (325, 58652), (341, 55900), (403, 47300), (430, 44330), (473, 40300), (550, 34658), (559, 34100), (572, 33325), (620, 30745), (650, 29326), (682, 27950), (715, 26660), (775, 24596), (806, 23650), (860, 22165), (946, 20150), (1075, 17732), (1100, 17329), (1118, 17050), (1300, 14663), (1333, 14300), (1364, 13975), (1430, 13330), (1550, 12298), (1612, 11825), (1705, 11180), (1892, 10075), (2015, 9460), (2150, 8866), (2236, 8525), (2365, 8060), (2666, 7150), (2795, 6820), (2860, 6665), (3100, 6149), (3410, 5590), (3575, 5332), (4030, 4730), (4300, 4433)]