39971958

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:381

約数の個数: 64

約数和(自身を含む): 90660864

約数和(自身を除く): 50688906

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 61, 62, 78, 93, 122, 183, 186, 271, 366, 403, 542, 793, 806, 813, 1209, 1586, 1626, 1891, 2379, 2418, 3523, 3782, 4758, 5673, 7046, 8401, 10569, 11346, 16531, 16802, 21138, 24583, 25203, 33062, 49166, 49593, 50406, 73749, 99186, 109213, 147498, 214903, 218426, 327639, 429806, 512461, 644709, 655278, 1024922, 1289418, 1537383, 3074766, 6661993, 13323986, 19985979, 39971958]

約数ペア:

[(1, 39971958), (2, 19985979), (3, 13323986), (6, 6661993), (13, 3074766), (26, 1537383), (31, 1289418), (39, 1024922), (61, 655278), (62, 644709), (78, 512461), (93, 429806), (122, 327639), (183, 218426), (186, 214903), (271, 147498), (366, 109213), (403, 99186), (542, 73749), (793, 50406), (806, 49593), (813, 49166), (1209, 33062), (1586, 25203), (1626, 24583), (1891, 21138), (2379, 16802), (2418, 16531), (3523, 11346), (3782, 10569), (4758, 8401), (5673, 7046)]