77403720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1997}}^1$

素因数の和:2047

約数の個数: 128

約数和(自身を含む): 258940800

約数和(自身を除く): 181537080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 19, 20, 24, 30, 34, 38, 40, 51, 57, 60, 68, 76, 85, 95, 102, 114, 120, 136, 152, 170, 190, 204, 228, 255, 285, 323, 340, 380, 408, 456, 510, 570, 646, 680, 760, 969, 1020, 1140, 1292, 1615, 1938, 1997, 2040, 2280, 2584, 3230, 3876, 3994, 4845, 5991, 6460, 7752, 7988, 9690, 9985, 11982, 12920, 15976, 19380, 19970, 23964, 29955, 33949, 37943, 38760, 39940, 47928, 59910, 67898, 75886, 79880, 101847, 113829, 119820, 135796, 151772, 169745, 189715, 203694, 227658, 239640, 271592, 303544, 339490, 379430, 407388, 455316, 509235, 569145, 645031, 678980, 758860, 814776, 910632, 1018470, 1138290, 1290062, 1357960, 1517720, 1935093, 2036940, 2276580, 2580124, 3225155, 3870186, 4073880, 4553160, 5160248, 6450310, 7740372, 9675465, 12900620, 15480744, 19350930, 25801240, 38701860, 77403720]

約数ペア:

[(1, 77403720), (2, 38701860), (3, 25801240), (4, 19350930), (5, 15480744), (6, 12900620), (8, 9675465), (10, 7740372), (12, 6450310), (15, 5160248), (17, 4553160), (19, 4073880), (20, 3870186), (24, 3225155), (30, 2580124), (34, 2276580), (38, 2036940), (40, 1935093), (51, 1517720), (57, 1357960), (60, 1290062), (68, 1138290), (76, 1018470), (85, 910632), (95, 814776), (102, 758860), (114, 678980), (120, 645031), (136, 569145), (152, 509235), (170, 455316), (190, 407388), (204, 379430), (228, 339490), (255, 303544), (285, 271592), (323, 239640), (340, 227658), (380, 203694), (408, 189715), (456, 169745), (510, 151772), (570, 135796), (646, 119820), (680, 113829), (760, 101847), (969, 79880), (1020, 75886), (1140, 67898), (1292, 59910), (1615, 47928), (1938, 39940), (1997, 38760), (2040, 37943), (2280, 33949), (2584, 29955), (3230, 23964), (3876, 19970), (3994, 19380), (4845, 15976), (5991, 12920), (6460, 11982), (7752, 9985), (7988, 9690)]