642508864

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{22973}}^1$

素因数の和:23027

約数の個数: 56

約数和(自身を含む): 1400495040

約数和(自身を除く): 757986176

約数列:

[1, 2, 4, 8, 16, 19, 23, 32, 38, 46, 64, 76, 92, 152, 184, 304, 368, 437, 608, 736, 874, 1216, 1472, 1748, 3496, 6992, 13984, 22973, 27968, 45946, 91892, 183784, 367568, 436487, 528379, 735136, 872974, 1056758, 1470272, 1745948, 2113516, 3491896, 4227032, 6983792, 8454064, 10039201, 13967584, 16908128, 20078402, 27935168, 33816256, 40156804, 80313608, 160627216, 321254432, 642508864]

約数ペア:

[(1, 642508864), (2, 321254432), (4, 160627216), (8, 80313608), (16, 40156804), (19, 33816256), (23, 27935168), (32, 20078402), (38, 16908128), (46, 13967584), (64, 10039201), (76, 8454064), (92, 6983792), (152, 4227032), (184, 3491896), (304, 2113516), (368, 1745948), (437, 1470272), (608, 1056758), (736, 872974), (874, 735136), (1216, 528379), (1472, 436487), (1748, 367568), (3496, 183784), (6992, 91892), (13984, 45946), (22973, 27968)]