172554980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{7457}}^1$

素因数の和:7568

約数の個数: 48

約数和(自身を含む): 394677360

約数和(自身を除く): 222122380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 890, 1157, 1780, 2314, 4628, 5785, 7457, 11570, 14914, 23140, 29828, 37285, 74570, 96941, 149140, 193882, 387764, 484705, 663673, 969410, 1327346, 1938820, 2654692, 3318365, 6636730, 8627749, 13273460, 17255498, 34510996, 43138745, 86277490, 172554980]

約数ペア:

[(1, 172554980), (2, 86277490), (4, 43138745), (5, 34510996), (10, 17255498), (13, 13273460), (20, 8627749), (26, 6636730), (52, 3318365), (65, 2654692), (89, 1938820), (130, 1327346), (178, 969410), (260, 663673), (356, 484705), (445, 387764), (890, 193882), (1157, 149140), (1780, 96941), (2314, 74570), (4628, 37285), (5785, 29828), (7457, 23140), (11570, 14914)]