71334820

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1\times {\mathrm{389}}^1$

素因数の和:624

約数の個数: 48

約数和(自身を含む): 153906480

約数和(自身を除く): 82571660

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 173, 212, 265, 346, 389, 530, 692, 778, 865, 1060, 1556, 1730, 1945, 3460, 3890, 7780, 9169, 18338, 20617, 36676, 41234, 45845, 67297, 82468, 91690, 103085, 134594, 183380, 206170, 269188, 336485, 412340, 672970, 1345940, 3566741, 7133482, 14266964, 17833705, 35667410, 71334820]

約数ペア:

[(1, 71334820), (2, 35667410), (4, 17833705), (5, 14266964), (10, 7133482), (20, 3566741), (53, 1345940), (106, 672970), (173, 412340), (212, 336485), (265, 269188), (346, 206170), (389, 183380), (530, 134594), (692, 103085), (778, 91690), (865, 82468), (1060, 67297), (1556, 45845), (1730, 41234), (1945, 36676), (3460, 20617), (3890, 18338), (7780, 9169)]