19484920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:185

約数の個数: 128

約数和(自身を含む): 55520640

約数和(自身を除く): 36035720

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 53, 56, 65, 70, 91, 101, 104, 106, 130, 140, 182, 202, 212, 260, 265, 280, 364, 371, 404, 424, 455, 505, 520, 530, 689, 707, 728, 742, 808, 910, 1010, 1060, 1313, 1378, 1414, 1484, 1820, 1855, 2020, 2120, 2626, 2756, 2828, 2968, 3445, 3535, 3640, 3710, 4040, 4823, 5252, 5353, 5512, 5656, 6565, 6890, 7070, 7420, 9191, 9646, 10504, 10706, 13130, 13780, 14140, 14840, 18382, 19292, 21412, 24115, 26260, 26765, 27560, 28280, 36764, 37471, 38584, 42824, 45955, 48230, 52520, 53530, 69589, 73528, 74942, 91910, 96460, 107060, 139178, 149884, 183820, 187355, 192920, 214120, 278356, 299768, 347945, 367640, 374710, 487123, 556712, 695890, 749420, 974246, 1391780, 1498840, 1948492, 2435615, 2783560, 3896984, 4871230, 9742460, 19484920]

約数ペア:

[(1, 19484920), (2, 9742460), (4, 4871230), (5, 3896984), (7, 2783560), (8, 2435615), (10, 1948492), (13, 1498840), (14, 1391780), (20, 974246), (26, 749420), (28, 695890), (35, 556712), (40, 487123), (52, 374710), (53, 367640), (56, 347945), (65, 299768), (70, 278356), (91, 214120), (101, 192920), (104, 187355), (106, 183820), (130, 149884), (140, 139178), (182, 107060), (202, 96460), (212, 91910), (260, 74942), (265, 73528), (280, 69589), (364, 53530), (371, 52520), (404, 48230), (424, 45955), (455, 42824), (505, 38584), (520, 37471), (530, 36764), (689, 28280), (707, 27560), (728, 26765), (742, 26260), (808, 24115), (910, 21412), (1010, 19292), (1060, 18382), (1313, 14840), (1378, 14140), (1414, 13780), (1484, 13130), (1820, 10706), (1855, 10504), (2020, 9646), (2120, 9191), (2626, 7420), (2756, 7070), (2828, 6890), (2968, 6565), (3445, 5656), (3535, 5512), (3640, 5353), (3710, 5252), (4040, 4823)]