20554341720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{79043}}^1$

素因数の和:79265

約数の個数: 128

約数和(自身を含む): 67611075840

約数和(自身を除く): 47056734120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 197, 220, 264, 330, 394, 440, 591, 660, 788, 985, 1182, 1320, 1576, 1970, 2167, 2364, 2955, 3940, 4334, 4728, 5910, 6501, 7880, 8668, 10835, 11820, 13002, 17336, 21670, 23640, 26004, 32505, 43340, 52008, 65010, 79043, 86680, 130020, 158086, 237129, 260040, 316172, 395215, 474258, 632344, 790430, 869473, 948516, 1185645, 1580860, 1738946, 1897032, 2371290, 2608419, 3161720, 3477892, 4347365, 4742580, 5216838, 6955784, 8694730, 9485160, 10433676, 13042095, 15571471, 17389460, 20867352, 26084190, 31142942, 34778920, 46714413, 52168380, 62285884, 77857355, 93428826, 104336760, 124571768, 155714710, 171286181, 186857652, 233572065, 311429420, 342572362, 373715304, 467144130, 513858543, 622858840, 685144724, 856430905, 934288260, 1027717086, 1370289448, 1712861810, 1868576520, 2055434172, 2569292715, 3425723620, 4110868344, 5138585430, 6851447240, 10277170860, 20554341720]

約数ペア:

[(1, 20554341720), (2, 10277170860), (3, 6851447240), (4, 5138585430), (5, 4110868344), (6, 3425723620), (8, 2569292715), (10, 2055434172), (11, 1868576520), (12, 1712861810), (15, 1370289448), (20, 1027717086), (22, 934288260), (24, 856430905), (30, 685144724), (33, 622858840), (40, 513858543), (44, 467144130), (55, 373715304), (60, 342572362), (66, 311429420), (88, 233572065), (110, 186857652), (120, 171286181), (132, 155714710), (165, 124571768), (197, 104336760), (220, 93428826), (264, 77857355), (330, 62285884), (394, 52168380), (440, 46714413), (591, 34778920), (660, 31142942), (788, 26084190), (985, 20867352), (1182, 17389460), (1320, 15571471), (1576, 13042095), (1970, 10433676), (2167, 9485160), (2364, 8694730), (2955, 6955784), (3940, 5216838), (4334, 4742580), (4728, 4347365), (5910, 3477892), (6501, 3161720), (7880, 2608419), (8668, 2371290), (10835, 1897032), (11820, 1738946), (13002, 1580860), (17336, 1185645), (21670, 948516), (23640, 869473), (26004, 790430), (32505, 632344), (43340, 474258), (52008, 395215), (65010, 316172), (79043, 260040), (86680, 237129), (130020, 158086)]