81994458

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{571}}^1$

素因数の和:859

約数の個数: 64

約数和(自身を含む): 202954752

約数和(自身を除く): 120960294

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 182, 263, 273, 526, 546, 571, 789, 1142, 1578, 1713, 1841, 3419, 3426, 3682, 3997, 5523, 6838, 7423, 7994, 10257, 11046, 11991, 14846, 20514, 22269, 23933, 23982, 44538, 47866, 51961, 71799, 103922, 143598, 150173, 155883, 300346, 311766, 450519, 901038, 1051211, 1952249, 2102422, 3153633, 3904498, 5856747, 6307266, 11713494, 13665743, 27331486, 40997229, 81994458]

約数ペア:

[(1, 81994458), (2, 40997229), (3, 27331486), (6, 13665743), (7, 11713494), (13, 6307266), (14, 5856747), (21, 3904498), (26, 3153633), (39, 2102422), (42, 1952249), (78, 1051211), (91, 901038), (182, 450519), (263, 311766), (273, 300346), (526, 155883), (546, 150173), (571, 143598), (789, 103922), (1142, 71799), (1578, 51961), (1713, 47866), (1841, 44538), (3419, 23982), (3426, 23933), (3682, 22269), (3997, 20514), (5523, 14846), (6838, 11991), (7423, 11046), (7994, 10257)]