81938619184

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{642797}}^1$

素因数の和:643093

約数の個数: 40

約数和(自身を含む): 164515148928

約数和(自身を除く): 82576529744

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 257, 496, 514, 1028, 2056, 4112, 7967, 15934, 31868, 63736, 127472, 642797, 1285594, 2571188, 5142376, 10284752, 19926707, 39853414, 79706828, 159413656, 165198829, 318827312, 330397658, 660795316, 1321590632, 2643181264, 5121163699, 10242327398, 20484654796, 40969309592, 81938619184]

約数ペア:

[(1, 81938619184), (2, 40969309592), (4, 20484654796), (8, 10242327398), (16, 5121163699), (31, 2643181264), (62, 1321590632), (124, 660795316), (248, 330397658), (257, 318827312), (496, 165198829), (514, 159413656), (1028, 79706828), (2056, 39853414), (4112, 19926707), (7967, 10284752), (15934, 5142376), (31868, 2571188), (63736, 1285594), (127472, 642797)]