389668720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{691}}^1$

素因数の和:783

約数の個数: 160

約数和(自身を含む): 1112071680

約数和(自身を除く): 722402960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 53, 56, 70, 76, 80, 95, 106, 112, 133, 140, 152, 190, 212, 265, 266, 280, 304, 371, 380, 424, 530, 532, 560, 665, 691, 742, 760, 848, 1007, 1060, 1064, 1330, 1382, 1484, 1520, 1855, 2014, 2120, 2128, 2660, 2764, 2968, 3455, 3710, 4028, 4240, 4837, 5035, 5320, 5528, 5936, 6910, 7049, 7420, 8056, 9674, 10070, 10640, 11056, 13129, 13820, 14098, 14840, 16112, 19348, 20140, 24185, 26258, 27640, 28196, 29680, 35245, 36623, 38696, 40280, 48370, 52516, 55280, 56392, 65645, 70490, 73246, 77392, 80560, 91903, 96740, 105032, 112784, 131290, 140980, 146492, 183115, 183806, 193480, 210064, 256361, 262580, 281960, 292984, 366230, 367612, 386960, 459515, 512722, 525160, 563920, 585968, 695837, 732460, 735224, 919030, 1025444, 1050320, 1281805, 1391674, 1464920, 1470448, 1838060, 2050888, 2563610, 2783348, 2929840, 3479185, 3676120, 4101776, 4870859, 5127220, 5566696, 6958370, 7352240, 9741718, 10254440, 11133392, 13916740, 19483436, 20508880, 24354295, 27833480, 38966872, 48708590, 55666960, 77933744, 97417180, 194834360, 389668720]

約数ペア:

[(1, 389668720), (2, 194834360), (4, 97417180), (5, 77933744), (7, 55666960), (8, 48708590), (10, 38966872), (14, 27833480), (16, 24354295), (19, 20508880), (20, 19483436), (28, 13916740), (35, 11133392), (38, 10254440), (40, 9741718), (53, 7352240), (56, 6958370), (70, 5566696), (76, 5127220), (80, 4870859), (95, 4101776), (106, 3676120), (112, 3479185), (133, 2929840), (140, 2783348), (152, 2563610), (190, 2050888), (212, 1838060), (265, 1470448), (266, 1464920), (280, 1391674), (304, 1281805), (371, 1050320), (380, 1025444), (424, 919030), (530, 735224), (532, 732460), (560, 695837), (665, 585968), (691, 563920), (742, 525160), (760, 512722), (848, 459515), (1007, 386960), (1060, 367612), (1064, 366230), (1330, 292984), (1382, 281960), (1484, 262580), (1520, 256361), (1855, 210064), (2014, 193480), (2120, 183806), (2128, 183115), (2660, 146492), (2764, 140980), (2968, 131290), (3455, 112784), (3710, 105032), (4028, 96740), (4240, 91903), (4837, 80560), (5035, 77392), (5320, 73246), (5528, 70490), (5936, 65645), (6910, 56392), (7049, 55280), (7420, 52516), (8056, 48370), (9674, 40280), (10070, 38696), (10640, 36623), (11056, 35245), (13129, 29680), (13820, 28196), (14098, 27640), (14840, 26258), (16112, 24185), (19348, 20140)]