19509960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:275

約数の個数: 128

約数和(自身を含む): 63360000

約数和(自身を除く): 43850040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 43, 57, 60, 76, 86, 95, 114, 120, 129, 152, 172, 190, 199, 215, 228, 258, 285, 344, 380, 398, 430, 456, 516, 570, 597, 645, 760, 796, 817, 860, 995, 1032, 1140, 1194, 1290, 1592, 1634, 1720, 1990, 2280, 2388, 2451, 2580, 2985, 3268, 3781, 3980, 4085, 4776, 4902, 5160, 5970, 6536, 7562, 7960, 8170, 8557, 9804, 11343, 11940, 12255, 15124, 16340, 17114, 18905, 19608, 22686, 23880, 24510, 25671, 30248, 32680, 34228, 37810, 42785, 45372, 49020, 51342, 56715, 68456, 75620, 85570, 90744, 98040, 102684, 113430, 128355, 151240, 162583, 171140, 205368, 226860, 256710, 325166, 342280, 453720, 487749, 513420, 650332, 812915, 975498, 1026840, 1300664, 1625830, 1950996, 2438745, 3251660, 3901992, 4877490, 6503320, 9754980, 19509960]

約数ペア:

[(1, 19509960), (2, 9754980), (3, 6503320), (4, 4877490), (5, 3901992), (6, 3251660), (8, 2438745), (10, 1950996), (12, 1625830), (15, 1300664), (19, 1026840), (20, 975498), (24, 812915), (30, 650332), (38, 513420), (40, 487749), (43, 453720), (57, 342280), (60, 325166), (76, 256710), (86, 226860), (95, 205368), (114, 171140), (120, 162583), (129, 151240), (152, 128355), (172, 113430), (190, 102684), (199, 98040), (215, 90744), (228, 85570), (258, 75620), (285, 68456), (344, 56715), (380, 51342), (398, 49020), (430, 45372), (456, 42785), (516, 37810), (570, 34228), (597, 32680), (645, 30248), (760, 25671), (796, 24510), (817, 23880), (860, 22686), (995, 19608), (1032, 18905), (1140, 17114), (1194, 16340), (1290, 15124), (1592, 12255), (1634, 11940), (1720, 11343), (1990, 9804), (2280, 8557), (2388, 8170), (2451, 7960), (2580, 7562), (2985, 6536), (3268, 5970), (3781, 5160), (3980, 4902), (4085, 4776)]