20123763715

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{887}}^1$

素因数の和:1180

約数の個数: 64

約数和(自身を含む): 27647972352

約数和(自身を除く): 7524208637

約数列:

[1, 5, 11, 43, 53, 55, 181, 215, 265, 473, 583, 887, 905, 1991, 2279, 2365, 2915, 4435, 7783, 9593, 9757, 9955, 11395, 25069, 38141, 38915, 47011, 47965, 48785, 85613, 105523, 125345, 160547, 190705, 235055, 412499, 419551, 428065, 517121, 527615, 802735, 1766017, 2021473, 2062495, 2097755, 2585605, 4537489, 6903521, 8508991, 8830085, 10107365, 22236203, 22687445, 34517605, 42544955, 75938731, 93598901, 111181015, 365886613, 379693655, 467994505, 1829433065, 4024752743, 20123763715]

約数ペア:

[(1, 20123763715), (5, 4024752743), (11, 1829433065), (43, 467994505), (53, 379693655), (55, 365886613), (181, 111181015), (215, 93598901), (265, 75938731), (473, 42544955), (583, 34517605), (887, 22687445), (905, 22236203), (1991, 10107365), (2279, 8830085), (2365, 8508991), (2915, 6903521), (4435, 4537489), (7783, 2585605), (9593, 2097755), (9757, 2062495), (9955, 2021473), (11395, 1766017), (25069, 802735), (38141, 527615), (38915, 517121), (47011, 428065), (47965, 419551), (48785, 412499), (85613, 235055), (105523, 190705), (125345, 160547)]