20155604924

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{255173}}^1$

素因数の和:255235

約数の個数: 72

約数和(自身を含む): 45612862848

約数和(自身を除く): 25457257924

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 49, 52, 62, 91, 98, 124, 182, 196, 217, 364, 403, 434, 637, 806, 868, 1274, 1519, 1612, 2548, 2821, 3038, 5642, 6076, 11284, 19747, 39494, 78988, 255173, 510346, 1020692, 1786211, 3317249, 3572422, 6634498, 7144844, 7910363, 12503477, 13268996, 15820726, 23220743, 25006954, 31641452, 46441486, 50013908, 55372541, 92882972, 102834719, 110745082, 162545201, 205669438, 221490164, 325090402, 387607787, 411338876, 650180804, 719843033, 775215574, 1439686066, 1550431148, 2879372132, 5038901231, 10077802462, 20155604924]

約数ペア:

[(1, 20155604924), (2, 10077802462), (4, 5038901231), (7, 2879372132), (13, 1550431148), (14, 1439686066), (26, 775215574), (28, 719843033), (31, 650180804), (49, 411338876), (52, 387607787), (62, 325090402), (91, 221490164), (98, 205669438), (124, 162545201), (182, 110745082), (196, 102834719), (217, 92882972), (364, 55372541), (403, 50013908), (434, 46441486), (637, 31641452), (806, 25006954), (868, 23220743), (1274, 15820726), (1519, 13268996), (1612, 12503477), (2548, 7910363), (2821, 7144844), (3038, 6634498), (5642, 3572422), (6076, 3317249), (11284, 1786211), (19747, 1020692), (39494, 510346), (78988, 255173)]