280499660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{6203}}^1$

素因数の和:6255

約数の個数: 96

約数和(自身を含む): 750435840

約数和(自身を除く): 469936180

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 28, 34, 35, 38, 68, 70, 76, 85, 95, 119, 133, 140, 170, 190, 238, 266, 323, 340, 380, 476, 532, 595, 646, 665, 1190, 1292, 1330, 1615, 2261, 2380, 2660, 3230, 4522, 6203, 6460, 9044, 11305, 12406, 22610, 24812, 31015, 43421, 45220, 62030, 86842, 105451, 117857, 124060, 173684, 210902, 217105, 235714, 421804, 434210, 471428, 527255, 589285, 738157, 824999, 868420, 1054510, 1178570, 1476314, 1649998, 2003569, 2109020, 2357140, 2952628, 3299996, 3690785, 4007138, 4124995, 7381570, 8014276, 8249990, 10017845, 14024983, 14763140, 16499980, 20035690, 28049966, 40071380, 56099932, 70124915, 140249830, 280499660]

約数ペア:

[(1, 280499660), (2, 140249830), (4, 70124915), (5, 56099932), (7, 40071380), (10, 28049966), (14, 20035690), (17, 16499980), (19, 14763140), (20, 14024983), (28, 10017845), (34, 8249990), (35, 8014276), (38, 7381570), (68, 4124995), (70, 4007138), (76, 3690785), (85, 3299996), (95, 2952628), (119, 2357140), (133, 2109020), (140, 2003569), (170, 1649998), (190, 1476314), (238, 1178570), (266, 1054510), (323, 868420), (340, 824999), (380, 738157), (476, 589285), (532, 527255), (595, 471428), (646, 434210), (665, 421804), (1190, 235714), (1292, 217105), (1330, 210902), (1615, 173684), (2261, 124060), (2380, 117857), (2660, 105451), (3230, 86842), (4522, 62030), (6203, 45220), (6460, 43421), (9044, 31015), (11305, 24812), (12406, 22610)]