20572740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3089}}^1$

素因数の和:3141

約数の個数: 72

約数和(自身を含む): 64111320

約数和(自身を除く): 43538580

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, 3089, 3330, 6178, 6660, 9267, 12356, 15445, 18534, 27801, 30890, 37068, 46335, 55602, 61780, 92670, 111204, 114293, 139005, 185340, 228586, 278010, 342879, 457172, 556020, 571465, 685758, 1028637, 1142930, 1371516, 1714395, 2057274, 2285860, 3428790, 4114548, 5143185, 6857580, 10286370, 20572740]

約数ペア:

[(1, 20572740), (2, 10286370), (3, 6857580), (4, 5143185), (5, 4114548), (6, 3428790), (9, 2285860), (10, 2057274), (12, 1714395), (15, 1371516), (18, 1142930), (20, 1028637), (30, 685758), (36, 571465), (37, 556020), (45, 457172), (60, 342879), (74, 278010), (90, 228586), (111, 185340), (148, 139005), (180, 114293), (185, 111204), (222, 92670), (333, 61780), (370, 55602), (444, 46335), (555, 37068), (666, 30890), (740, 27801), (1110, 18534), (1332, 15445), (1665, 12356), (2220, 9267), (3089, 6660), (3330, 6178)]