30145780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1619}}^1$

素因数の和:1661

約数の個数: 72

約数和(自身を含む): 77565600

約数和(自身を除く): 47419820

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1330, 1619, 1862, 2660, 3238, 3724, 4655, 6476, 8095, 9310, 11333, 16190, 18620, 22666, 30761, 32380, 45332, 56665, 61522, 79331, 113330, 123044, 153805, 158662, 215327, 226660, 307610, 317324, 396655, 430654, 615220, 793310, 861308, 1076635, 1507289, 1586620, 2153270, 3014578, 4306540, 6029156, 7536445, 15072890, 30145780]

約数ペア:

[(1, 30145780), (2, 15072890), (4, 7536445), (5, 6029156), (7, 4306540), (10, 3014578), (14, 2153270), (19, 1586620), (20, 1507289), (28, 1076635), (35, 861308), (38, 793310), (49, 615220), (70, 430654), (76, 396655), (95, 317324), (98, 307610), (133, 226660), (140, 215327), (190, 158662), (196, 153805), (245, 123044), (266, 113330), (380, 79331), (490, 61522), (532, 56665), (665, 45332), (931, 32380), (980, 30761), (1330, 22666), (1619, 18620), (1862, 16190), (2660, 11333), (3238, 9310), (3724, 8095), (4655, 6476)]