2158207870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{13709}}^1$

素因数の和:13909

約数の個数: 64

約数和(自身を含む): 4809248640

約数和(自身を除く): 2651040770

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 173, 182, 346, 455, 865, 910, 1211, 1730, 2249, 2422, 4498, 6055, 11245, 12110, 13709, 15743, 22490, 27418, 31486, 68545, 78715, 95963, 137090, 157430, 178217, 191926, 356434, 479815, 891085, 959630, 1247519, 1782170, 2371657, 2495038, 4743314, 6237595, 11858285, 12475190, 16601599, 23716570, 30831541, 33203198, 61663082, 83007995, 154157705, 166015990, 215820787, 308315410, 431641574, 1079103935, 2158207870]

約数ペア:

[(1, 2158207870), (2, 1079103935), (5, 431641574), (7, 308315410), (10, 215820787), (13, 166015990), (14, 154157705), (26, 83007995), (35, 61663082), (65, 33203198), (70, 30831541), (91, 23716570), (130, 16601599), (173, 12475190), (182, 11858285), (346, 6237595), (455, 4743314), (865, 2495038), (910, 2371657), (1211, 1782170), (1730, 1247519), (2249, 959630), (2422, 891085), (4498, 479815), (6055, 356434), (11245, 191926), (12110, 178217), (13709, 157430), (15743, 137090), (22490, 95963), (27418, 78715), (31486, 68545)]