20565207540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3087869}}^1$

素因数の和:3087921

約数の個数: 72

約数和(自身を含む): 64067126760

約数和(自身を除く): 43501919220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 74, 90, 111, 148, 180, 185, 222, 333, 370, 444, 555, 666, 740, 1110, 1332, 1665, 2220, 3330, 6660, 3087869, 6175738, 9263607, 12351476, 15439345, 18527214, 27790821, 30878690, 37054428, 46318035, 55581642, 61757380, 92636070, 111163284, 114251153, 138954105, 185272140, 228502306, 277908210, 342753459, 457004612, 555816420, 571255765, 685506918, 1028260377, 1142511530, 1371013836, 1713767295, 2056520754, 2285023060, 3427534590, 4113041508, 5141301885, 6855069180, 10282603770, 20565207540]

約数ペア:

[(1, 20565207540), (2, 10282603770), (3, 6855069180), (4, 5141301885), (5, 4113041508), (6, 3427534590), (9, 2285023060), (10, 2056520754), (12, 1713767295), (15, 1371013836), (18, 1142511530), (20, 1028260377), (30, 685506918), (36, 571255765), (37, 555816420), (45, 457004612), (60, 342753459), (74, 277908210), (90, 228502306), (111, 185272140), (148, 138954105), (180, 114251153), (185, 111163284), (222, 92636070), (333, 61757380), (370, 55581642), (444, 46318035), (555, 37054428), (666, 30878690), (740, 27790821), (1110, 18527214), (1332, 15439345), (1665, 12351476), (2220, 9263607), (3330, 6175738), (6660, 3087869)]