205590640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{135257}}^1$

素因数の和:135289

約数の個数: 40

約数和(自身を含む): 503159760

約数和(自身を除く): 297569120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 135257, 270514, 541028, 676285, 1082056, 1352570, 2164112, 2569883, 2705140, 5139766, 5410280, 10279532, 10820560, 12849415, 20559064, 25698830, 41118128, 51397660, 102795320, 205590640]

約数ペア:

[(1, 205590640), (2, 102795320), (4, 51397660), (5, 41118128), (8, 25698830), (10, 20559064), (16, 12849415), (19, 10820560), (20, 10279532), (38, 5410280), (40, 5139766), (76, 2705140), (80, 2569883), (95, 2164112), (152, 1352570), (190, 1082056), (304, 676285), (380, 541028), (760, 270514), (1520, 135257)]