208391920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{7639}}^1$

素因数の和:7694

約数の個数: 80

約数和(自身を含む): 545679360

約数和(自身を除く): 337287440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1240, 1364, 1705, 2480, 2728, 3410, 5456, 6820, 7639, 13640, 15278, 27280, 30556, 38195, 61112, 76390, 84029, 122224, 152780, 168058, 236809, 305560, 336116, 420145, 473618, 611120, 672232, 840290, 947236, 1184045, 1344464, 1680580, 1894472, 2368090, 2604899, 3361160, 3788944, 4736180, 5209798, 6722320, 9472360, 10419596, 13024495, 18944720, 20839192, 26048990, 41678384, 52097980, 104195960, 208391920]

約数ペア:

[(1, 208391920), (2, 104195960), (4, 52097980), (5, 41678384), (8, 26048990), (10, 20839192), (11, 18944720), (16, 13024495), (20, 10419596), (22, 9472360), (31, 6722320), (40, 5209798), (44, 4736180), (55, 3788944), (62, 3361160), (80, 2604899), (88, 2368090), (110, 1894472), (124, 1680580), (155, 1344464), (176, 1184045), (220, 947236), (248, 840290), (310, 672232), (341, 611120), (440, 473618), (496, 420145), (620, 336116), (682, 305560), (880, 236809), (1240, 168058), (1364, 152780), (1705, 122224), (2480, 84029), (2728, 76390), (3410, 61112), (5456, 38195), (6820, 30556), (7639, 27280), (13640, 15278)]