128502010

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{20173}}^1$

素因数の和:20207

約数の個数: 48

約数和(自身を含む): 289779336

約数和(自身を除く): 161277326

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 455, 490, 637, 910, 1274, 3185, 6370, 20173, 40346, 100865, 141211, 201730, 262249, 282422, 524498, 706055, 988477, 1311245, 1412110, 1835743, 1976954, 2622490, 3671486, 4942385, 9178715, 9884770, 12850201, 18357430, 25700402, 64251005, 128502010]

約数ペア:

[(1, 128502010), (2, 64251005), (5, 25700402), (7, 18357430), (10, 12850201), (13, 9884770), (14, 9178715), (26, 4942385), (35, 3671486), (49, 2622490), (65, 1976954), (70, 1835743), (91, 1412110), (98, 1311245), (130, 988477), (182, 706055), (245, 524498), (455, 282422), (490, 262249), (637, 201730), (910, 141211), (1274, 100865), (3185, 40346), (6370, 20173)]