9921040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:200

約数の個数: 80

約数和(自身を含む): 24909120

約数和(自身を除く): 14988080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 61, 76, 80, 95, 107, 122, 152, 190, 214, 244, 304, 305, 380, 428, 488, 535, 610, 760, 856, 976, 1070, 1159, 1220, 1520, 1712, 2033, 2140, 2318, 2440, 4066, 4280, 4636, 4880, 5795, 6527, 8132, 8560, 9272, 10165, 11590, 13054, 16264, 18544, 20330, 23180, 26108, 32528, 32635, 40660, 46360, 52216, 65270, 81320, 92720, 104432, 124013, 130540, 162640, 248026, 261080, 496052, 522160, 620065, 992104, 1240130, 1984208, 2480260, 4960520, 9921040]

約数ペア:

[(1, 9921040), (2, 4960520), (4, 2480260), (5, 1984208), (8, 1240130), (10, 992104), (16, 620065), (19, 522160), (20, 496052), (38, 261080), (40, 248026), (61, 162640), (76, 130540), (80, 124013), (95, 104432), (107, 92720), (122, 81320), (152, 65270), (190, 52216), (214, 46360), (244, 40660), (304, 32635), (305, 32528), (380, 26108), (428, 23180), (488, 20330), (535, 18544), (610, 16264), (760, 13054), (856, 11590), (976, 10165), (1070, 9272), (1159, 8560), (1220, 8132), (1520, 6527), (1712, 5795), (2033, 4880), (2140, 4636), (2318, 4280), (2440, 4066)]