20638008

素因数分解:

$2^3\times 3^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:237

約数の個数: 96

約数和(自身を含む): 58805760

約数和(自身を除く): 38167752

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 37, 61, 72, 74, 111, 122, 127, 148, 183, 222, 244, 254, 296, 333, 366, 381, 444, 488, 508, 549, 666, 732, 762, 888, 1016, 1098, 1143, 1332, 1464, 1524, 2196, 2257, 2286, 2664, 3048, 4392, 4514, 4572, 4699, 6771, 7747, 9028, 9144, 9398, 13542, 14097, 15494, 18056, 18796, 20313, 23241, 27084, 28194, 30988, 37592, 40626, 42291, 46482, 54168, 56388, 61976, 69723, 81252, 84582, 92964, 112776, 139446, 162504, 169164, 185928, 278892, 286639, 338328, 557784, 573278, 859917, 1146556, 1719834, 2293112, 2579751, 3439668, 5159502, 6879336, 10319004, 20638008]

約数ペア:

[(1, 20638008), (2, 10319004), (3, 6879336), (4, 5159502), (6, 3439668), (8, 2579751), (9, 2293112), (12, 1719834), (18, 1146556), (24, 859917), (36, 573278), (37, 557784), (61, 338328), (72, 286639), (74, 278892), (111, 185928), (122, 169164), (127, 162504), (148, 139446), (183, 112776), (222, 92964), (244, 84582), (254, 81252), (296, 69723), (333, 61976), (366, 56388), (381, 54168), (444, 46482), (488, 42291), (508, 40626), (549, 37592), (666, 30988), (732, 28194), (762, 27084), (888, 23241), (1016, 20313), (1098, 18796), (1143, 18056), (1332, 15494), (1464, 14097), (1524, 13542), (2196, 9398), (2257, 9144), (2286, 9028), (2664, 7747), (3048, 6771), (4392, 4699), (4514, 4572)]