31667895

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:122

約数の個数: 128

約数和(自身を含む): 70778880

約数和(自身を除く): 39110985

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 27, 31, 35, 45, 47, 63, 69, 93, 105, 115, 135, 141, 155, 161, 189, 207, 217, 235, 279, 315, 329, 345, 423, 465, 483, 621, 651, 705, 713, 805, 837, 945, 987, 1035, 1081, 1085, 1269, 1395, 1449, 1457, 1645, 1953, 2115, 2139, 2415, 2961, 3105, 3243, 3255, 3565, 4185, 4347, 4371, 4935, 4991, 5405, 5859, 6345, 6417, 7245, 7285, 7567, 8883, 9729, 9765, 10199, 10695, 13113, 14805, 14973, 16215, 19251, 21735, 21855, 22701, 24955, 29187, 29295, 30597, 32085, 33511, 37835, 39339, 44415, 44919, 48645, 50995, 65565, 68103, 74865, 91791, 96255, 100533, 113505, 134757, 145935, 152985, 167555, 196695, 204309, 224595, 234577, 275373, 301599, 340515, 458955, 502665, 673785, 703731, 904797, 1021545, 1172885, 1376865, 1507995, 2111193, 3518655, 4523985, 6333579, 10555965, 31667895]

約数ペア:

[(1, 31667895), (3, 10555965), (5, 6333579), (7, 4523985), (9, 3518655), (15, 2111193), (21, 1507995), (23, 1376865), (27, 1172885), (31, 1021545), (35, 904797), (45, 703731), (47, 673785), (63, 502665), (69, 458955), (93, 340515), (105, 301599), (115, 275373), (135, 234577), (141, 224595), (155, 204309), (161, 196695), (189, 167555), (207, 152985), (217, 145935), (235, 134757), (279, 113505), (315, 100533), (329, 96255), (345, 91791), (423, 74865), (465, 68103), (483, 65565), (621, 50995), (651, 48645), (705, 44919), (713, 44415), (805, 39339), (837, 37835), (945, 33511), (987, 32085), (1035, 30597), (1081, 29295), (1085, 29187), (1269, 24955), (1395, 22701), (1449, 21855), (1457, 21735), (1645, 19251), (1953, 16215), (2115, 14973), (2139, 14805), (2415, 13113), (2961, 10695), (3105, 10199), (3243, 9765), (3255, 9729), (3565, 8883), (4185, 7567), (4347, 7285), (4371, 7245), (4935, 6417), (4991, 6345), (5405, 5859)]