30480940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1637}}^1$

素因数の和:1679

約数の個数: 72

約数和(自身を含む): 78427440

約数和(自身を除く): 47946500

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, 1637, 1862, 2660, 3274, 3724, 4655, 6548, 8185, 9310, 11459, 16370, 18620, 22918, 31103, 32740, 45836, 57295, 62206, 80213, 114590, 124412, 155515, 160426, 217721, 229180, 311030, 320852, 401065, 435442, 622060, 802130, 870884, 1088605, 1524047, 1604260, 2177210, 3048094, 4354420, 6096188, 7620235, 15240470, 30480940]

約数ペア:

[(1, 30480940), (2, 15240470), (4, 7620235), (5, 6096188), (7, 4354420), (10, 3048094), (14, 2177210), (19, 1604260), (20, 1524047), (28, 1088605), (35, 870884), (38, 802130), (49, 622060), (70, 435442), (76, 401065), (95, 320852), (98, 311030), (133, 229180), (140, 217721), (190, 160426), (196, 155515), (245, 124412), (266, 114590), (380, 80213), (490, 62206), (532, 57295), (665, 45836), (931, 32740), (980, 31103), (1330, 22918), (1637, 18620), (1862, 16370), (2660, 11459), (3274, 9310), (3724, 8185), (4655, 6548)]