521309080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:461

約数の個数: 128

約数和(自身を含む): 1320753600

約数和(自身を除く): 799444520

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 157, 170, 190, 257, 314, 323, 340, 380, 514, 628, 646, 680, 760, 785, 1028, 1256, 1285, 1292, 1570, 1615, 2056, 2570, 2584, 2669, 2983, 3140, 3230, 4369, 4883, 5140, 5338, 5966, 6280, 6460, 8738, 9766, 10280, 10676, 11932, 12920, 13345, 14915, 17476, 19532, 21352, 21845, 23864, 24415, 26690, 29830, 34952, 39064, 40349, 43690, 48830, 50711, 53380, 59660, 80698, 83011, 87380, 97660, 101422, 106760, 119320, 161396, 166022, 174760, 195320, 201745, 202844, 253555, 322792, 332044, 403490, 405688, 415055, 507110, 664088, 685933, 766631, 806980, 830110, 1014220, 1371866, 1533262, 1613960, 1660220, 2028440, 2743732, 3066524, 3320440, 3429665, 3833155, 5487464, 6133048, 6859330, 7666310, 13032727, 13718660, 15332620, 26065454, 27437320, 30665240, 52130908, 65163635, 104261816, 130327270, 260654540, 521309080]

約数ペア:

[(1, 521309080), (2, 260654540), (4, 130327270), (5, 104261816), (8, 65163635), (10, 52130908), (17, 30665240), (19, 27437320), (20, 26065454), (34, 15332620), (38, 13718660), (40, 13032727), (68, 7666310), (76, 6859330), (85, 6133048), (95, 5487464), (136, 3833155), (152, 3429665), (157, 3320440), (170, 3066524), (190, 2743732), (257, 2028440), (314, 1660220), (323, 1613960), (340, 1533262), (380, 1371866), (514, 1014220), (628, 830110), (646, 806980), (680, 766631), (760, 685933), (785, 664088), (1028, 507110), (1256, 415055), (1285, 405688), (1292, 403490), (1570, 332044), (1615, 322792), (2056, 253555), (2570, 202844), (2584, 201745), (2669, 195320), (2983, 174760), (3140, 166022), (3230, 161396), (4369, 119320), (4883, 106760), (5140, 101422), (5338, 97660), (5966, 87380), (6280, 83011), (6460, 80698), (8738, 59660), (9766, 53380), (10280, 50711), (10676, 48830), (11932, 43690), (12920, 40349), (13345, 39064), (14915, 34952), (17476, 29830), (19532, 26690), (21352, 24415), (21845, 23864)]