85217860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{6689}}^1$

素因数の和:6725

約数の個数: 72

約数和(自身を含む): 224222040

約数和(自身を除く): 139004180

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 6370, 6689, 12740, 13378, 26756, 33445, 46823, 66890, 86957, 93646, 133780, 173914, 187292, 234115, 327761, 347828, 434785, 468230, 608699, 655522, 869570, 936460, 1217398, 1311044, 1638805, 1739140, 2434796, 3043495, 3277610, 4260893, 6086990, 6555220, 8521786, 12173980, 17043572, 21304465, 42608930, 85217860]

約数ペア:

[(1, 85217860), (2, 42608930), (4, 21304465), (5, 17043572), (7, 12173980), (10, 8521786), (13, 6555220), (14, 6086990), (20, 4260893), (26, 3277610), (28, 3043495), (35, 2434796), (49, 1739140), (52, 1638805), (65, 1311044), (70, 1217398), (91, 936460), (98, 869570), (130, 655522), (140, 608699), (182, 468230), (196, 434785), (245, 347828), (260, 327761), (364, 234115), (455, 187292), (490, 173914), (637, 133780), (910, 93646), (980, 86957), (1274, 66890), (1820, 46823), (2548, 33445), (3185, 26756), (6370, 13378), (6689, 12740)]