71681820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1657}}^1$

素因数の和:1779

約数の個数: 96

約数和(自身を含む): 231748608

約数和(自身を除く): 160066788

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 103, 105, 140, 206, 210, 309, 412, 420, 515, 618, 721, 1030, 1236, 1442, 1545, 1657, 2060, 2163, 2884, 3090, 3314, 3605, 4326, 4971, 6180, 6628, 7210, 8285, 8652, 9942, 10815, 11599, 14420, 16570, 19884, 21630, 23198, 24855, 33140, 34797, 43260, 46396, 49710, 57995, 69594, 99420, 115990, 139188, 170671, 173985, 231980, 341342, 347970, 512013, 682684, 695940, 853355, 1024026, 1194697, 1706710, 2048052, 2389394, 2560065, 3413420, 3584091, 4778788, 5120130, 5973485, 7168182, 10240260, 11946970, 14336364, 17920455, 23893940, 35840910, 71681820]

約数ペア:

[(1, 71681820), (2, 35840910), (3, 23893940), (4, 17920455), (5, 14336364), (6, 11946970), (7, 10240260), (10, 7168182), (12, 5973485), (14, 5120130), (15, 4778788), (20, 3584091), (21, 3413420), (28, 2560065), (30, 2389394), (35, 2048052), (42, 1706710), (60, 1194697), (70, 1024026), (84, 853355), (103, 695940), (105, 682684), (140, 512013), (206, 347970), (210, 341342), (309, 231980), (412, 173985), (420, 170671), (515, 139188), (618, 115990), (721, 99420), (1030, 69594), (1236, 57995), (1442, 49710), (1545, 46396), (1657, 43260), (2060, 34797), (2163, 33140), (2884, 24855), (3090, 23198), (3314, 21630), (3605, 19884), (4326, 16570), (4971, 14420), (6180, 11599), (6628, 10815), (7210, 9942), (8285, 8652)]