64069520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{691}}^1$

素因数の和:784

約数の個数: 80

約数和(自身を含む): 159602880

約数和(自身を除く): 95533360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 61, 76, 80, 95, 122, 152, 190, 244, 304, 305, 380, 488, 610, 691, 760, 976, 1159, 1220, 1382, 1520, 2318, 2440, 2764, 3455, 4636, 4880, 5528, 5795, 6910, 9272, 11056, 11590, 13129, 13820, 18544, 23180, 26258, 27640, 42151, 46360, 52516, 55280, 65645, 84302, 92720, 105032, 131290, 168604, 210064, 210755, 262580, 337208, 421510, 525160, 674416, 800869, 843020, 1050320, 1601738, 1686040, 3203476, 3372080, 4004345, 6406952, 8008690, 12813904, 16017380, 32034760, 64069520]

約数ペア:

[(1, 64069520), (2, 32034760), (4, 16017380), (5, 12813904), (8, 8008690), (10, 6406952), (16, 4004345), (19, 3372080), (20, 3203476), (38, 1686040), (40, 1601738), (61, 1050320), (76, 843020), (80, 800869), (95, 674416), (122, 525160), (152, 421510), (190, 337208), (244, 262580), (304, 210755), (305, 210064), (380, 168604), (488, 131290), (610, 105032), (691, 92720), (760, 84302), (976, 65645), (1159, 55280), (1220, 52516), (1382, 46360), (1520, 42151), (2318, 27640), (2440, 26258), (2764, 23180), (3455, 18544), (4636, 13820), (4880, 13129), (5528, 11590), (5795, 11056), (6910, 9272)]