28890640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{229}}^1$

素因数の和:344

約数の個数: 80

約数和(自身を含む): 71870400

約数和(自身を除く): 42979760

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 83, 95, 152, 166, 190, 229, 304, 332, 380, 415, 458, 664, 760, 830, 916, 1145, 1328, 1520, 1577, 1660, 1832, 2290, 3154, 3320, 3664, 4351, 4580, 6308, 6640, 7885, 8702, 9160, 12616, 15770, 17404, 18320, 19007, 21755, 25232, 31540, 34808, 38014, 43510, 63080, 69616, 76028, 87020, 95035, 126160, 152056, 174040, 190070, 304112, 348080, 361133, 380140, 722266, 760280, 1444532, 1520560, 1805665, 2889064, 3611330, 5778128, 7222660, 14445320, 28890640]

約数ペア:

[(1, 28890640), (2, 14445320), (4, 7222660), (5, 5778128), (8, 3611330), (10, 2889064), (16, 1805665), (19, 1520560), (20, 1444532), (38, 760280), (40, 722266), (76, 380140), (80, 361133), (83, 348080), (95, 304112), (152, 190070), (166, 174040), (190, 152056), (229, 126160), (304, 95035), (332, 87020), (380, 76028), (415, 69616), (458, 63080), (664, 43510), (760, 38014), (830, 34808), (916, 31540), (1145, 25232), (1328, 21755), (1520, 19007), (1577, 18320), (1660, 17404), (1832, 15770), (2290, 12616), (3154, 9160), (3320, 8702), (3664, 7885), (4351, 6640), (4580, 6308)]