157948520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{3407}}^1$

素因数の和:3498

約数の個数: 64

約数和(自身を含む): 380332800

約数和(自身を除く): 222384280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 61, 76, 95, 122, 152, 190, 244, 305, 380, 488, 610, 760, 1159, 1220, 2318, 2440, 3407, 4636, 5795, 6814, 9272, 11590, 13628, 17035, 23180, 27256, 34070, 46360, 64733, 68140, 129466, 136280, 207827, 258932, 323665, 415654, 517864, 647330, 831308, 1039135, 1294660, 1662616, 2078270, 2589320, 3948713, 4156540, 7897426, 8313080, 15794852, 19743565, 31589704, 39487130, 78974260, 157948520]

約数ペア:

[(1, 157948520), (2, 78974260), (4, 39487130), (5, 31589704), (8, 19743565), (10, 15794852), (19, 8313080), (20, 7897426), (38, 4156540), (40, 3948713), (61, 2589320), (76, 2078270), (95, 1662616), (122, 1294660), (152, 1039135), (190, 831308), (244, 647330), (305, 517864), (380, 415654), (488, 323665), (610, 258932), (760, 207827), (1159, 136280), (1220, 129466), (2318, 68140), (2440, 64733), (3407, 46360), (4636, 34070), (5795, 27256), (6814, 23180), (9272, 17035), (11590, 13628)]