28172196

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3541}}^1$

素因数の和:3581

約数の個数: 72

約数和(自身を含む): 81225144

約数和(自身を除く): 53052948

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 34, 36, 39, 51, 52, 68, 78, 102, 117, 153, 156, 204, 221, 234, 306, 442, 468, 612, 663, 884, 1326, 1989, 2652, 3541, 3978, 7082, 7956, 10623, 14164, 21246, 31869, 42492, 46033, 60197, 63738, 92066, 120394, 127476, 138099, 180591, 184132, 240788, 276198, 361182, 414297, 541773, 552396, 722364, 782561, 828594, 1083546, 1565122, 1657188, 2167092, 2347683, 3130244, 4695366, 7043049, 9390732, 14086098, 28172196]

約数ペア:

[(1, 28172196), (2, 14086098), (3, 9390732), (4, 7043049), (6, 4695366), (9, 3130244), (12, 2347683), (13, 2167092), (17, 1657188), (18, 1565122), (26, 1083546), (34, 828594), (36, 782561), (39, 722364), (51, 552396), (52, 541773), (68, 414297), (78, 361182), (102, 276198), (117, 240788), (153, 184132), (156, 180591), (204, 138099), (221, 127476), (234, 120394), (306, 92066), (442, 63738), (468, 60197), (612, 46033), (663, 42492), (884, 31869), (1326, 21246), (1989, 14164), (2652, 10623), (3541, 7956), (3978, 7082)]