28074640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{523}}^1$

素因数の和:608

約数の個数: 80

約数和(自身を含む): 72513216

約数和(自身を除く): 44438576

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 61, 80, 88, 110, 122, 176, 220, 244, 305, 440, 488, 523, 610, 671, 880, 976, 1046, 1220, 1342, 2092, 2440, 2615, 2684, 3355, 4184, 4880, 5230, 5368, 5753, 6710, 8368, 10460, 10736, 11506, 13420, 20920, 23012, 26840, 28765, 31903, 41840, 46024, 53680, 57530, 63806, 92048, 115060, 127612, 159515, 230120, 255224, 319030, 350933, 460240, 510448, 638060, 701866, 1276120, 1403732, 1754665, 2552240, 2807464, 3509330, 5614928, 7018660, 14037320, 28074640]

約数ペア:

[(1, 28074640), (2, 14037320), (4, 7018660), (5, 5614928), (8, 3509330), (10, 2807464), (11, 2552240), (16, 1754665), (20, 1403732), (22, 1276120), (40, 701866), (44, 638060), (55, 510448), (61, 460240), (80, 350933), (88, 319030), (110, 255224), (122, 230120), (176, 159515), (220, 127612), (244, 115060), (305, 92048), (440, 63806), (488, 57530), (523, 53680), (610, 46024), (671, 41840), (880, 31903), (976, 28765), (1046, 26840), (1220, 23012), (1342, 20920), (2092, 13420), (2440, 11506), (2615, 10736), (2684, 10460), (3355, 8368), (4184, 6710), (4880, 5753), (5230, 5368)]