55291990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1$

素因数の和:361

約数の個数: 64

約数和(自身を含む): 114960384

約数和(自身を除く): 59668394

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 127, 130, 170, 197, 221, 254, 394, 442, 635, 985, 1105, 1270, 1651, 1970, 2159, 2210, 2561, 3302, 3349, 4318, 5122, 6698, 8255, 10795, 12805, 16510, 16745, 21590, 25019, 25610, 28067, 33490, 43537, 50038, 56134, 87074, 125095, 140335, 217685, 250190, 280670, 325247, 425323, 435370, 650494, 850646, 1626235, 2126615, 3252470, 4253230, 5529199, 11058398, 27645995, 55291990]

約数ペア:

[(1, 55291990), (2, 27645995), (5, 11058398), (10, 5529199), (13, 4253230), (17, 3252470), (26, 2126615), (34, 1626235), (65, 850646), (85, 650494), (127, 435370), (130, 425323), (170, 325247), (197, 280670), (221, 250190), (254, 217685), (394, 140335), (442, 125095), (635, 87074), (985, 56134), (1105, 50038), (1270, 43537), (1651, 33490), (1970, 28067), (2159, 25610), (2210, 25019), (2561, 21590), (3302, 16745), (3349, 16510), (4318, 12805), (5122, 10795), (6698, 8255)]