123278350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2131}}^1$

素因数の和:2245

約数の個数: 48

約数和(自身を含む): 249827760

約数和(自身を除く): 126549410

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 89, 130, 178, 325, 445, 650, 890, 1157, 2131, 2225, 2314, 4262, 4450, 5785, 10655, 11570, 21310, 27703, 28925, 53275, 55406, 57850, 106550, 138515, 189659, 277030, 379318, 692575, 948295, 1385150, 1896590, 2465567, 4741475, 4931134, 9482950, 12327835, 24655670, 61639175, 123278350]

約数ペア:

[(1, 123278350), (2, 61639175), (5, 24655670), (10, 12327835), (13, 9482950), (25, 4931134), (26, 4741475), (50, 2465567), (65, 1896590), (89, 1385150), (130, 948295), (178, 692575), (325, 379318), (445, 277030), (650, 189659), (890, 138515), (1157, 106550), (2131, 57850), (2225, 55406), (2314, 53275), (4262, 28925), (4450, 27703), (5785, 21310), (10655, 11570)]