40396640

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{4139}}^1$

素因数の和:4215

約数の個数: 48

約数和(自身を含む): 97025040

約数和(自身を除く): 56628400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 976, 1220, 1952, 2440, 4139, 4880, 8278, 9760, 16556, 20695, 33112, 41390, 66224, 82780, 132448, 165560, 252479, 331120, 504958, 662240, 1009916, 1262395, 2019832, 2524790, 4039664, 5049580, 8079328, 10099160, 20198320, 40396640]

約数ペア:

[(1, 40396640), (2, 20198320), (4, 10099160), (5, 8079328), (8, 5049580), (10, 4039664), (16, 2524790), (20, 2019832), (32, 1262395), (40, 1009916), (61, 662240), (80, 504958), (122, 331120), (160, 252479), (244, 165560), (305, 132448), (488, 82780), (610, 66224), (976, 41390), (1220, 33112), (1952, 20695), (2440, 16556), (4139, 9760), (4880, 8278)]