19857360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:221

約数の個数: 160

約数和(自身を含む): 67709952

約数和(自身を除く): 47852592

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 31, 34, 40, 48, 51, 60, 62, 68, 80, 85, 93, 102, 120, 124, 136, 155, 157, 170, 186, 204, 240, 248, 255, 272, 310, 314, 340, 372, 408, 465, 471, 496, 510, 527, 620, 628, 680, 744, 785, 816, 930, 942, 1020, 1054, 1240, 1256, 1360, 1488, 1570, 1581, 1860, 1884, 2040, 2108, 2355, 2480, 2512, 2635, 2669, 3140, 3162, 3720, 3768, 4080, 4216, 4710, 4867, 5270, 5338, 6280, 6324, 7440, 7536, 7905, 8007, 8432, 9420, 9734, 10540, 10676, 12560, 12648, 13345, 14601, 15810, 16014, 18840, 19468, 21080, 21352, 24335, 25296, 26690, 29202, 31620, 32028, 37680, 38936, 40035, 42160, 42704, 48670, 53380, 58404, 63240, 64056, 73005, 77872, 80070, 82739, 97340, 106760, 116808, 126480, 128112, 146010, 160140, 165478, 194680, 213520, 233616, 248217, 292020, 320280, 330956, 389360, 413695, 496434, 584040, 640560, 661912, 827390, 992868, 1168080, 1241085, 1323824, 1654780, 1985736, 2482170, 3309560, 3971472, 4964340, 6619120, 9928680, 19857360]

約数ペア:

[(1, 19857360), (2, 9928680), (3, 6619120), (4, 4964340), (5, 3971472), (6, 3309560), (8, 2482170), (10, 1985736), (12, 1654780), (15, 1323824), (16, 1241085), (17, 1168080), (20, 992868), (24, 827390), (30, 661912), (31, 640560), (34, 584040), (40, 496434), (48, 413695), (51, 389360), (60, 330956), (62, 320280), (68, 292020), (80, 248217), (85, 233616), (93, 213520), (102, 194680), (120, 165478), (124, 160140), (136, 146010), (155, 128112), (157, 126480), (170, 116808), (186, 106760), (204, 97340), (240, 82739), (248, 80070), (255, 77872), (272, 73005), (310, 64056), (314, 63240), (340, 58404), (372, 53380), (408, 48670), (465, 42704), (471, 42160), (496, 40035), (510, 38936), (527, 37680), (620, 32028), (628, 31620), (680, 29202), (744, 26690), (785, 25296), (816, 24335), (930, 21352), (942, 21080), (1020, 19468), (1054, 18840), (1240, 16014), (1256, 15810), (1360, 14601), (1488, 13345), (1570, 12648), (1581, 12560), (1860, 10676), (1884, 10540), (2040, 9734), (2108, 9420), (2355, 8432), (2480, 8007), (2512, 7905), (2635, 7536), (2669, 7440), (3140, 6324), (3162, 6280), (3720, 5338), (3768, 5270), (4080, 4867), (4216, 4710)]