1520809740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{42457}}^1$

素因数の和:42671

約数の個数: 72

約数和(自身を含む): 4636413600

約数和(自身を除く): 3115603860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 199, 398, 597, 796, 995, 1194, 1791, 1990, 2388, 2985, 3582, 3980, 5970, 7164, 8955, 11940, 17910, 35820, 42457, 84914, 127371, 169828, 212285, 254742, 382113, 424570, 509484, 636855, 764226, 849140, 1273710, 1528452, 1910565, 2547420, 3821130, 7642260, 8448943, 16897886, 25346829, 33795772, 42244715, 50693658, 76040487, 84489430, 101387316, 126734145, 152080974, 168978860, 253468290, 304161948, 380202435, 506936580, 760404870, 1520809740]

約数ペア:

[(1, 1520809740), (2, 760404870), (3, 506936580), (4, 380202435), (5, 304161948), (6, 253468290), (9, 168978860), (10, 152080974), (12, 126734145), (15, 101387316), (18, 84489430), (20, 76040487), (30, 50693658), (36, 42244715), (45, 33795772), (60, 25346829), (90, 16897886), (180, 8448943), (199, 7642260), (398, 3821130), (597, 2547420), (796, 1910565), (995, 1528452), (1194, 1273710), (1791, 849140), (1990, 764226), (2388, 636855), (2985, 509484), (3582, 424570), (3980, 382113), (5970, 254742), (7164, 212285), (8955, 169828), (11940, 127371), (17910, 84914), (35820, 42457)]