19697220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:230

約数の個数: 144

約数和(自身を含む): 65218608

約数和(自身を除く): 45521388

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 41, 45, 51, 60, 68, 82, 85, 90, 102, 123, 153, 157, 164, 170, 180, 204, 205, 246, 255, 306, 314, 340, 369, 410, 471, 492, 510, 612, 615, 628, 697, 738, 765, 785, 820, 942, 1020, 1230, 1394, 1413, 1476, 1530, 1570, 1845, 1884, 2091, 2355, 2460, 2669, 2788, 2826, 3060, 3140, 3485, 3690, 4182, 4710, 5338, 5652, 6273, 6437, 6970, 7065, 7380, 8007, 8364, 9420, 10455, 10676, 12546, 12874, 13345, 13940, 14130, 16014, 19311, 20910, 24021, 25092, 25748, 26690, 28260, 31365, 32028, 32185, 38622, 40035, 41820, 48042, 53380, 57933, 62730, 64370, 77244, 80070, 96084, 96555, 109429, 115866, 120105, 125460, 128740, 160140, 193110, 218858, 231732, 240210, 289665, 328287, 386220, 437716, 480420, 547145, 579330, 656574, 984861, 1094290, 1158660, 1313148, 1641435, 1969722, 2188580, 3282870, 3939444, 4924305, 6565740, 9848610, 19697220]

約数ペア:

[(1, 19697220), (2, 9848610), (3, 6565740), (4, 4924305), (5, 3939444), (6, 3282870), (9, 2188580), (10, 1969722), (12, 1641435), (15, 1313148), (17, 1158660), (18, 1094290), (20, 984861), (30, 656574), (34, 579330), (36, 547145), (41, 480420), (45, 437716), (51, 386220), (60, 328287), (68, 289665), (82, 240210), (85, 231732), (90, 218858), (102, 193110), (123, 160140), (153, 128740), (157, 125460), (164, 120105), (170, 115866), (180, 109429), (204, 96555), (205, 96084), (246, 80070), (255, 77244), (306, 64370), (314, 62730), (340, 57933), (369, 53380), (410, 48042), (471, 41820), (492, 40035), (510, 38622), (612, 32185), (615, 32028), (628, 31365), (697, 28260), (738, 26690), (765, 25748), (785, 25092), (820, 24021), (942, 20910), (1020, 19311), (1230, 16014), (1394, 14130), (1413, 13940), (1476, 13345), (1530, 12874), (1570, 12546), (1845, 10676), (1884, 10455), (2091, 9420), (2355, 8364), (2460, 8007), (2669, 7380), (2788, 7065), (2826, 6970), (3060, 6437), (3140, 6273), (3485, 5652), (3690, 5338), (4182, 4710)]