78721648

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{3691}}^1$

素因数の和:3773

約数の個数: 40

約数和(自身を含む): 161148416

約数和(自身を除く): 82426768

約数列:

[1, 2, 4, 8, 16, 31, 43, 62, 86, 124, 172, 248, 344, 496, 688, 1333, 2666, 3691, 5332, 7382, 10664, 14764, 21328, 29528, 59056, 114421, 158713, 228842, 317426, 457684, 634852, 915368, 1269704, 1830736, 2539408, 4920103, 9840206, 19680412, 39360824, 78721648]

約数ペア:

[(1, 78721648), (2, 39360824), (4, 19680412), (8, 9840206), (16, 4920103), (31, 2539408), (43, 1830736), (62, 1269704), (86, 915368), (124, 634852), (172, 457684), (248, 317426), (344, 228842), (496, 158713), (688, 114421), (1333, 59056), (2666, 29528), (3691, 21328), (5332, 14764), (7382, 10664)]