66173775

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:161

約数の個数: 72

約数和(自身を含む): 120599424

約数和(自身を除く): 54425649

約数列:

[1, 3, 5, 15, 17, 25, 43, 51, 71, 75, 85, 129, 213, 215, 255, 289, 355, 425, 645, 731, 867, 1065, 1075, 1207, 1275, 1445, 1775, 2193, 3053, 3225, 3621, 3655, 4335, 5325, 6035, 7225, 9159, 10965, 12427, 15265, 18105, 18275, 20519, 21675, 30175, 37281, 45795, 51901, 54825, 61557, 62135, 76325, 90525, 102595, 155703, 186405, 228975, 259505, 307785, 310675, 512975, 778515, 882317, 932025, 1297525, 1538925, 2646951, 3892575, 4411585, 13234755, 22057925, 66173775]

約数ペア:

[(1, 66173775), (3, 22057925), (5, 13234755), (15, 4411585), (17, 3892575), (25, 2646951), (43, 1538925), (51, 1297525), (71, 932025), (75, 882317), (85, 778515), (129, 512975), (213, 310675), (215, 307785), (255, 259505), (289, 228975), (355, 186405), (425, 155703), (645, 102595), (731, 90525), (867, 76325), (1065, 62135), (1075, 61557), (1207, 54825), (1275, 51901), (1445, 45795), (1775, 37281), (2193, 30175), (3053, 21675), (3225, 20519), (3621, 18275), (3655, 18105), (4335, 15265), (5325, 12427), (6035, 10965), (7225, 9159)]